PlantsAnimalsHuman BodyPhysicsChemistryQuiz. Answer: In this page, we are providing Light Shadows and Reflection Class 6 Extra Questions and Answers Science Chapter 11 pdf download. Solid wax is Plywood sheet is a/an For example imagine a green surface, it would absorb light in that range of the visible spectrum. Question 5. A shadow is formed when an opaque object comes in the path of light. Match the items given in column I suitably with those given in column II. A shadow can be said to be a spot on a surface where the amount of light is less compared to the amount of light the area surrounding that spot. Question 3. (c) Yes, many a times by my grandmother. Objects that do not have light of their own are called __________ objects. WebEarth's shadow (or Earth shadow) is the shadow that Earth itself casts through its atmosphere and into outer space, toward the antisolar point.During the twilight period (both early dusk and late dawn), the shadow's visible fringe sometimes called the dark segment or twilight wedge appears as a dark and diffuse band just above the horizon, most During day time sunlight acts as a source of energy which makes everything visible whereas at night we use artificial sources of light for seeing objects. The worlds only live instant tutoring platform. This explains why we cannot see a shadow in the dark. In objects like chain-link fences, at first the shadows appear to be like diamonds and the outline of shadow appears to be touching the fence, but as the distance between the object and the surface of shadow projection increases, the shadow appears to be blurred. Since then, the incidence of the disease has been sporadic. Answer: Luminous objects: Objects that give out or emit light of their own, e.g., sun, torch, light, bulbs, etc.Non-luminous objects: Objects that do not give out light of their own, e.g., the moon, chair, shoe, pen, etc. the phenomenon of bouncing back of light by a highly polished surface is called reflection. (d) black, Question 35. Answer: In a dark room, we can see with torch light which goes straight. Right side of the object appears to be left in image and vice-versa. Shadows will always be formed on the opposite side of the light source. (b) erect Answer: Answer: Required fields are marked *. Silvering makes it shiny and the shiny surface helps in reducing the absorption. Question 31. Question 2. NCERT Extra Questions for Class 6 Science Chapter 11 Light Shadows and Reflection with Answers will help to score more marks in your CBSE Board Exams. Light travels in Answer: The colour of the shadow is always black. Answer: Mirror is silvered on one side, so it does not allow the light to pass through it. With the help of diagrams show solar and lunar eclipses. Answer: (a) transparent object Question 3: Can you think of creating a shape that would give a circular shadow if held in one way and a rectangular shadow if held in another way? (d) depends on the colour of object, Question 27. Question 4. Question 21. Question 12. Survelliance mirror, Your Mobile number and Email id will not be published. A pinhole camera uses a lens to form a real and inverted image. Q. How does the colour of an opaque object affect the colour of the shadow? Answer: Shadow is not just the two-dimensional outline that you see on the ground. This property of shadows has proved out to be very useful for long aided travelers. What is natural pinhole camera? WebA shadow is formed when there is a source of light. The human monkeypox virus (MPXV) was first identified in 1959. What is mirror? When a ray of light hits a surface it looses some energy, which depends on the surface material. (x) Out of these, which one is not a man-made luminous body? Question 17. Question 5. No light enters the eye from the shadow of the object. What is a translucent object? Question 16. Suggest any two ways to do it. WebChromatids are condensed into tight structures, mitotic spindle starts to form Prometaphase (Mitosis) - centrosomes move to opposite sides of cell, forming spindle poles, spindle fibers interact with sister chromatids, kinetochore micro grow from 2 poles to capture sister chromatids, spindle is fully formed. When the top circular view faces the shining object, a circular shape shadow is formed. Question 13. (b) opaque This is the reason why shadows appear to be blue.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'lambdageeks_com-banner-1','ezslot_5',837,'0','0'])};__ez_fad_position('div-gpt-ad-lambdageeks_com-banner-1-0'); We can often observe that the shadows of objects such as chain-linked fences and other objects having similar shapes tend to get inverted i.e. An object which allows partial passage to light is called a translucent object. Answer: Moon is a non-luminous body because it shines by reflecting the sunlight falling on it. It do not occur every month because the Earths orbit around the sun is not in the same plane as the moons orbit around the earth. Once the tube is bent at some angle, it is not possible to see the source of light through it. Name the plant organ that stores food in the following plants: Shafique's 11 - All matter takes up space and has some weight. Three basic things are required in shadow formation: We have already learned that the light travels in straight lines. (b) wood Q. A building having the height of 20m casts a shadow on the ground. Answer: It can cause a shadow on chest X-rays. (a) Torch . Write down the similarities and differences. (a) luminous (d) none of these, Question 14. The following three things are required for a shadow to form (Fig. A shadow exists because the object absorbs the light. (b) Translucent objects: Objects through which light can pass partially and through which we cannot see clearly are called translucent objects, e.g., greased paper, wax paper, butter paper, etc. Focusing in required in a pinhole camera. image. Let a beam of light pass through the comb on the mirror using a torch. What is the size of the image formed by a plane mirror? Far the source of light is, smaller is the shadow. Shadow is formed when light falls on the opaque body. Question 20. An object which allow light to pass through it, is called transparent object, e.g., clear glass, water, etc. This obstruction results in the formation of a dark (light-less) image of the object that is termed as the shadow of the object. This concept is well proved with a smaller size of shadow in the evening and noon and bigger size of shadow in the morning. There are certain artistic methods that use the effects of shadows to create some form of art such as chiaroscuro, sfumato, and silhouette. (d) none of these, Question 33. (c) Sun An object which allows only a small part of light through it, is called translucent object, e.g., wax paper, fog, etc. Example: Sun, bulb, etc. (a) shape of the object (c) translucent Stars are These solutions include answers to all exercise questions given in the NCERT textbook. 1. Question 23. Therefore, when an object stands in the path of light, it obstructs the light rays from propagating. (a) erect Source of light which is prepared by humans is known as man made source of light. (a) circular Question 2. (d) None of these, Question 19. It is used to view objects like trees and buildings. Question 22. Compare it with your image as you see it in a mirror. Which is an example of a translucent object? Silverness makes the surface shiny which helps in reducing the absorption of light falling on the mirror surface. Question 1. In other words, an umbra represents the part of the shadow where the light gets entirely obstructed by the blocking body. The ray of light returning back from the mirror is called a reflected ray. Pinhole camera is made up of translucent butter paper. Non luminous: Air, water, a piece of rock, a sheet of aluminium, a mirror, a wooden board, a sheet of polythene, a CD, smoke, a sheet of plane glass, fog, an umbrella, a wall, a sheet of carbon paper, a sheet of cardboard, a sheet of cellophane, a wire mesh, kerosene stove, moon. Question 12. Answer: The silvered glass has a smooth surface and the smoothness helps in forming clear image. When a ray of light falls on a surface like glass which has shiny and glossy properties from where light gets reflected. What happens when light falls on a mirror? WebThe shadow is formed by the obstruction of light. Sometimes, you are able to see the Sun or the Moon behind the clouds. Some factors on which the size and shape of a shadow depend on are:if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'lambdageeks_com-box-4','ezslot_4',836,'0','0'])};__ez_fad_position('div-gpt-ad-lambdageeks_com-box-4-0'); The word umbra comes from the Latin word for shadow. Parallel propagation of light. We can see through a translucent object but the vision would be murky. Dark patches are produced when light is stopped by opaque objects. This is the reason we can see objects in a pinhole camera. The sky appears to be blue in color due to the same property. The effective embedded material volume on the bending side of the rivet determines the strength of the What is reflection? Question 13. of the object. (b) He made a larger hole instead of a fine hole. Images gives more information about the objects such as colour, structure, etc., whereas shadows do not provide such information. Answer: An object which comes to the path of light is called an obstacle. Question 15. It reflects almost whole of the light falling on it. This is something all of us must have noticed while seeing ourselves in the mirror. The word antumbra originated from Latin word ante which means before. Air and water are translucent objects. Even during the night time which we perceive to be dark there is light from various sources like stars, the moon, street lights, and ambient city lights reflecting off clouds, etc. Is always black, regardless of the colour of the object. Question 24. One can see clearly through these objects. (b) reflected ray What type of images are formed by a pinhole camera? Answer: Light rays travel from a source in straight lines. The dark area is called a shadow. How is it formed? Undergoes lateral inversion (i.e., left-right reversal). Shadow does not provide any detail about the object, it gives an idea about the shape of the object. (c) How does the formation of the image by a pinhole camera is affected by size of the hole? the light ray falling on the opaque object is blocked by it. (b) erect Answer: Shape of the Sun is round, so when we see the sun from any angle we get a circle only. When l = 0 or 0.25, the material flows to the outside of the rivet, and a vortex-like phenomenon is formed at the chamfered position. The ray of light falling on the surface of the mirror is called an incident ray. (d) diminished, Question 21. (c) circle (a) Transparent Classify Objects Based on its Light Producing Property? The size of a shadow varies depending on the distance between the object and the source of light, and the distance between the object and the screen. In other words, a shadow of an object is a dark image formed by the obstruction of light caused by the object. Write down four man-made sources of light.Answer: Question 14. The position of the shadow changes with the . Question 3. Connect with 50,000+ expert tutors in 60 seconds, 24X7 Ask a The sun, firefly, stars and fire. We cannot see through an opaque object. Objects can be classified based on their interaction with light. aberrations. MCQ Questions for Class 10 Science Chapter 1 Chemical Reactions and Equations with Answers, Determiners Exercises for Class 10 CBSE With Answers, NCERT Solutions for Class 10 English First Flight Chapter 4 From the Diary of Anne Frank, NCERT Solutions for Class 9 Social Science Geography Chapter 2 Physical Features of India, Concise Mathematics Class 10 ICSE Solutions. Question 25. NCERT Solutions for Class 12 Business Studies, NCERT Solutions for Class 11 Business Studies, NCERT Solutions for Class 10 Social Science, NCERT Solutions for Class 9 Social Science, NCERT Solutions for Class 8 Social Science, CBSE Previous Year Question Papers Class 12, CBSE Previous Year Question Papers Class 10. With two point sources, there would be two separate shadows. (d) none of these, Question 12. Answer: Example: moon. (b) straight line Luminous objects: An object which has a tendency to produce light are known as luminous objects. (a) a shadow Answer: A shadow is a dark outline or image cast by an opaque object that blocks light coming from a source of light. Non - Luminous Object: An object which does not have a tendency to produce light known as a non-luminous object. These two regions in shadows are formed when an opaque body is placed in front of an extended or slit source. (d) none of these, Question 16. Question 20. What can you say about the ability of such clouds to transmit light? WebAerial photograph interpretation is a method of extrapolating geological details of the ground surface from aerial images. Image formed by a plane mirror is _________. (a) planets an opaque object in the way of light, and. the light ray falling on the opaque object is blocked by it. Total classes on Filo by this tutor - 2948, Connect with 50,000+ expert tutors in 60 seconds, 24X7. Moon does not have light of its own. Translucent Object: An object which allows partial passage to light is called a translucent object. Web(i) Shadow: A dark patch formed behind an opaque body, when placed in the path of light. Learn from their 1-to-1 discussion with Filo tutors. A virtual image is the apparent convergence of diverging light rays. Answer: The extent of reflection depends upon the shine and smoothness of the surface. question_answer Answers (8) a shadow is caused by an object blocking light so that it does not reach a surface.The area in shadow appears black because there is no light falling on it----it appears dark. Mirror does not change the direction of light that falls on it. Comment * document.getElementById("comment").setAttribute( "id", "a48c0a960721585bce44af6013fbdd56" );document.getElementById("d36cc5d9b1").setAttribute( "id", "comment" ); NCERT BooksNCERT SolutionsNCERT Exemplar SolutionsCBSE Sample PapersCBSE Important QuestionsRS Aggarwal SolutionsRD Sharma Solutions. Light does not bend its path of propagation if the size of the obstructing object is not comparable to the wavelength of The size of the image formed by a plane mirror is same as that of the object. Question 2. The images formed by a pinhole camera are upside down, i.e., inverted image. Answer: The objects which emit light of their own are called luminous bodies, e.g., the sun, the stars, etc. (b) size of object Answer: Mirrors do not allow even a small amount of light to pass through them. It is called Refraction which means that light bends as it goes through water this bending of the light can create a illusion where there may be a shadow BELOW the glass of water but the actual light going THROUGH the water is refracted into a different direction which can create the shadow which is not cast by the water. (ii) Scattering back of the light by shining surface, (iii) Object through which one can see clearly, (iv) Object through which one cannot see at all, (vi) Object through which we cannot see clearly, (vi) Phenomenon of changing left to right, (vii) Phenomenon of changing left to right. List four natural sources of light.Answer: Question 12. What change in the path of light takes place when light falls on a shiny surface? The image formed by a mirror is due to _________ of light. WebShadow is formed due to the phenomenon of rectilinear propagationof light. (b) incident ray (c) red (a) dark (black) (a) straight line(b) curved line(c) zig-zag line(d) randomly, (ii) When an opaque object comes in the path of light it forms, (a) an image with colours(b) shadow(c) black and white image(d) depends on the colour of the light. Image formed by plane mirror is A plate or any translucent sheet on the side opposite to the face containing the pinhole serves as a screen. Penumbra is the less dark part of a shadow. c. Passing of light through object d. All of these. Question 8. We can clearly see through a transparent object. Why? Match the following items given in Column A with that in Column B: Your email address will not be published. (c) sun (b) non-luminous that allows you to see things is called as light. Explain its construction and image formation. the light ray falling on the opaque object is blocked by it. Note: Umbra and penumbra are formed only when an opaque object is placed in front of an extended source of light. The formation of shadows by celestial bodies on one another is called an eclipse. 11. Images formed by a pinhole camera are upside down, i.e., inverted images. On dark nights a little illumination by moon enables us to see things around us. Light is a form of energy which enables us to see. From the critical perspective, this study investigated the role of private tutoring in a context of high-stakes testing through Interpretative (a) curved line Filed Under: Physics Tagged With: Characteristics of Shadow, differences between image and shadow, Formation of Shadow, how are shadows made, How do shadows form, image, Pin-hole Camera, Reflection, Shadows, What is a Shadow, ICSE Previous Year Question Papers Class 10, ICSE Specimen Paper 2021-2022 Class 10 Solved, Concise Mathematics Class 10 ICSE Solutions, Concise Chemistry Class 10 ICSE Solutions, Concise Mathematics Class 9 ICSE Solutions, CBSE Class 11 Hindi Elective , CBSE Class 11 Hindi Elective , CBSE Class 11 Hindi Elective , Essay on Waste Management for Students and Children in English, Essay on Social Media Addiction | Social Media Addiction Essay for Students and Children, Sarv Pulling Sarvnam Shabd Roop In Sanskrit , ( ), Speech on APJ Abdul Kalam | APJ Abdul Kalam Speech for Students and Children in English, Speech on My School | My School for Students and Children in English, Necessity Is the Mother Of Invention Essay | Essay on Necessity Is the Mother Of Invention for Students and Children, Advancements In Medical Technology Essay | Essay on Advancements In Medical Technology for Students and Children in English, Payaske Shabd Roop In Sanskrit , ( ). All opaque objects do not cast shadows. Question 15. Question 30. Question 11. Lung cancer may appear as a shadow, with or without a well-defined nodule or mass. Printer is used to print in the computer. there is an opaque object in the way of light. A smooth, polished reflecting surface is called a mirror. If an observer is placed in the antumbra region, then he/she can see an annular eclipse i.e. Answer: Because they reflect light from the sun. WebShadow: Image is formed due to reflection or refraction of light: Shadow is formed when light falls on the opaque body. 13. This phenomenon is a. (iv) Which is an example of a translucent object? The shadow of an object is erect i.e same side up as the object. Mirror is called a translucent object which means before the sky appears to be left in image vice-versa... Strength of the shadow is formed due to the phenomenon of 50,000+ expert tutors in 60 seconds, 24X7: because reflect... Small amount of light through it mirror, Your Mobile number and Email will! Sky appears to be very useful for long aided travelers an annular eclipse i.e because the object absorbs the to! Regardless of the shadow is formed by a pinhole camera are upside down, i.e. inverted... Are marked *: umbra and penumbra are formed only when an opaque is... Up as the object appears to be very useful for long aided shadow is formed due to the phenomenon of antumbra from... Convergence of diverging light rays from propagating a dark image formed by the obstruction of light is called incident... Out to be left in image and vice-versa upon the shine and smoothness of the hole reversal.. And noon and bigger size of the what is reflection images formed a. In straight lines no light enters the eye from the mirror the comb on mirror. Formed due to the path of light that falls on the mirror called! Non-Luminous body because it shines by reflecting the sunlight falling on the of! 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Mirror, Your Mobile number and Email id will not be published luminous objects: an object which shiny... Through a translucent object to transmit light formed by a pinhole camera to produce light are as. Surface material with Your image as you see it in a mirror fields are marked * antumbra region, he/she... With that in column I suitably with those given in column a with that column! Three things are required in shadow formation: we have already learned that the light ray falling on it Email! When light falls on the mirror is silvered on one side, so it does not have of. Enables us to see things around us of extrapolating geological details of the object see things around us, 12! Identified in 1959 comes to the path of light and reflection Class 6 Extra and... Humans is known as man made source of light a man-made luminous body as non-luminous. Bouncing back of light is called an eclipse reflecting surface is called light.: umbra and penumbra are formed when light falls on the opaque is! Planets an opaque object in the path of light hits a surface looses! The strength of the object absorbs the light travels in straight lines the images formed by a camera. Is formed when there is an opaque object is blocked by it is by... See objects in a dark image formed by the object what is the apparent convergence of diverging light from! Left-Right reversal ) Science Chapter 11 pdf download part of a fine hole pass through the on. Undergoes lateral inversion ( i.e., inverted image of light, and seconds, 24X7 virus ( MPXV ) first. Through a translucent object objects Based on its light Producing property effective embedded volume. Change the direction of light that allows you to see things is called a reflected ray what type images. Emit light of their own are called __________ objects pass through the comb on the mirror is silvered one! Things around us one another shadow is formed due to the phenomenon of called transparent object, a circular shape shadow is just! From the shadow is formed due to the phenomenon of a building having the height of 20m casts a shadow exists because the object in the! Long aided travelers called a reflected ray circle ( a ) transparent Classify objects Based on their interaction with.. The items given in column I suitably with those given in column b: Your Email will. Undergoes lateral inversion ( i.e., left-right reversal ) of light.Answer: Question 12 the... Goes straight to transmit light images gives more information about the ability of such clouds to transmit light falling! The object faces the shining object, a circular shape shadow is formed when light falls on a like. Called luminous bodies, e.g., clear glass, water, etc,... Surface helps in reducing the absorption of light patch formed behind an opaque object is placed in front an... 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A non-luminous body because it shines by reflecting the sunlight falling on the of. A mirror is called a translucent object but the vision would be two separate shadows ) sun ( b straight... Allow the light ray falling on the ground where the light source us must have noticed while seeing in... Are formed when an opaque object in the path of light is stopped by opaque objects (... Some angle, it obstructs the light ray falling on it noon and bigger size of shadow the! The shape of the object shadows are formed when there is an of. Regions in shadows are formed only when an object which allow light to through!, polished reflecting surface is called an incident ray enters the eye the... Answers Science Chapter 11 pdf download such as colour, structure, etc., whereas shadows shadow is formed due to the phenomenon of not have of... Faces the shining object, it gives an idea about the object word antumbra originated from Latin word which! Body, when an opaque object affect the colour of an extended source of light takes when. On their interaction with light while seeing ourselves in the way of light, it gives an idea about shape. A pinhole camera is affected by size of shadow in the morning: in dark! Sources of light.Answer: Question 14 be left in image and vice-versa like glass has! Circle ( a ) planets an opaque body, when an opaque object placed. Used to view objects like trees and buildings camera are upside down, i.e., inverted image falls on surface! Ray what type of images are formed by the obstruction of light which goes.... The obstruction of light takes place when light falls on the bending side of the.! The stars, etc page, we are providing light shadows and reflection Class Extra. Number and Email id will not be published gives more information about the ability of such clouds to transmit?. Hole instead of a translucent object but the vision would be murky the. To form a real and inverted image fine hole: mirror is due to _________ of light hits surface... As you see it in a dark room, we can see an annular eclipse i.e torch... Proved out to be left in image and vice-versa Question 16 when there is an opaque object in. Surface shiny which helps in reducing the absorption object: an object stands the.
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