Ncert- class6- science- Chapter 8: Light, Shadows and Reflections 2 Welcome to your Ncert- class6- science- Chapter 8: Light, Shadows and Reflections 2 1. Which of the following statements is true? Reflection is possible only from polished surface. The image formed by a pinhole camera is inverted because light travels in a straight line As we move the object away from the light source, the shadow of the object becomes smaller. Light does not change its direction on reflection. None 2. Which of the following is NOT true about an image formed by a plane mirror? The image is formed on the other side of the mirror The image depicts only the shape of the object. The image is of the same size as the object. The image is of the same colour as the object. None 3. Using a light lamp, short and clear shadow of a hand can be obtained by placing the hand None of these nearer to the light lamp as far from the lamp as is possible on the light lamp so as not to allow the light to pass None 4. Pinhole camera is a simple application of : rectilinear propagation of light refraction of light reflection of light scattering of light None 5. On which of the following factors does the shape and size of a shadow depend? Shape and distance of the source of light Size and position of the source of light Shape and size of the source of light Direction and shape of the source of light None 6. An example for a non-luminous object is ___________. a 100 W electric bulb a well polished gas burner a candle the sun None 7. The term reflection refers to the bending of light rays: around a sharp edge around the boundary of a narrow aperture when they strike a mirror when they enter a different medium None 8. Shadow moves with The change in position of the object All of the above The change in position of the source of light The change in the distance between the object and the source of light None 9. The phenomenon by which the incident light falling on a surface is sent back into the same medium is known as ___________. None Dispersion Refraction Reflection None 10. Sometimes when we pass under a tree covered with a large number of leaves during the daytime, we notice small patches of sunlight under it. Which of the following devices works on the same principle as is observed in the above given scenario? A luminous object A mirror A glass window A pinhole camera None 11. Which of the following is not a characteristic of pinhole camera ? It is inexpensive to make It works on the principle of rectilinear motion of light It produces an inverted image The image produced is black and white None 12. ________ materials do not allow any light to pass through. Translucent Semi absorbent Transparent Opaque None 13. Which of the following is an example of natural pinhole camera ? Holes in a leaf Pollen grains in flower All the above Thorns on a stem None 14. Translucent materials allow ______ amount of light to pass through. no very less entire some None 15. When light is reflected from the a spherical or curved surface: the laws of reflections are not followed the laws of reflections are followed None 16. The bouncing of a beam of light from a polished surface in some other direction is called - refraction scattering reflection dispersion None 17. Select the odd one out (shadows, eclipses, expansion, images) images expansion shadows eclipses None 18. Which of the following objects is not translucent in nature? Frosted glass Plastic ruler Glass pane Butter paper None 19. What is the role of aperture in pinhole camera ? Sharpens the image Diffracts light passing through it Allows light to enter to form the image None of these None 20. What kind of lens is used in making a pinhole camera ? No lens is used Concave lens Convex lens Concavo-convex lens None 21. Match the following: ItemTransparency(a) Iron door(i) Transparent(b) Glass window pane(ii) Translucent(c) Butter paper(iii) Opaque (a) - (i), (b) - (ii), (c) - (iii) (a) - (iii), (b) - (i), (c) - (ii) (a) - (iii), (b) - (ii), (c) - (i) (a) - (ii), (b) - (i), (b) - (iii) None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
