Ncert- class6- science- Chapter 8: Light, Shadows and Reflections 1 Welcome to your Ncert- class6- science- Chapter 8: Light, Shadows and Reflections 1 1. A body which allows almost all the light to pass through it and does not reflect any light is a- transparent body translucent body opaque body polished surface None 2. The phenomenon of rebounding and change in direction of light when it strikes the surface of a mirror is called ____________ Reflection Diffraction Refraction None of these None 3. The shadow below a tree has bright spots in it because : the gaps between the leaves act as the pin holes the light bends around the leaves to form circular spots the light comes through circular gaps the leaves are circular None 4. Which fact can be established by a pinhole camera? Image gets inverted when the light travels through a hole Light travels in straight lines No specific conclusion Images are always inverted None 5. Shadows are formed due to: Cannot say Blockage of light and heat by the opaque objects Transfer of light through any opaque object Blockage of light by the opaque objects None 6. Which of the following is a translucent? Ground glass Iron Silver Wood None 7. Which of the following body allows only a part of the light to pass through it? Air Brick Wood Oiled paper None 8. The shadow below a tree has bright spots in it because: The light comes through circular gaps The gaps between the leaves act as the pin holes The leaves are circular The light bends around the leaves to form circular spots None 9. Change in the direction of light when it falls on an object is called : Absorption Reflection Refraction Adsorption None 10. A thin layer of water is transparent but a very thick layer of water is : completely transparent opaque most transparent translucent None 11. The length of the shadow will be shortest when The angle between the source of light and the object is 60 The source of light and the object are parallel to each other The source of light and the object are perpendicular to each other The angle between the source of light and the object is 45 None 12. Select the odd one out w.r.t. transparency (air, fog, mist, tissue paper) mist tissue paper air fog None 13. Which of the following is the setup to make a basic pinhole camera ? An enclosed box with a small hole on one of its surface An enclosed box with a small concave mirror on one of its surface An enclosed box with a small convex mirror on one of its surface An enclosed box with a small plane mirror on one of its surface None 14. In a room lighted by an electric bulb, it is found that the shadow of the ceiling fan hung in the centre is falling on a wall opposite to the door. What can you say about the position of the bulb On the wall having the door On the wall facing the door On the wall on your right as you enter the room On the wall on your left as you enter the room None 15. Nature of the shadow depends on : The relative distance between the source of light and the object The angle between the source of light and the object The relative size of the source of light and the object All of the above None 16. Which of the following reflects the light instead of refracting it? Glass Lens Shiny silver mirrors Paper None 17. A body which allows most of the light to pass through it is called a : light medium transparent body opaque body translucent body None 18. What acts as a pinhole in the naturally formed pinhole images of sun ? The shadow of birds sitting on the trees The gaps between the leaves The trunk of leafless trees The twigs and branches of trees None 19. The colour of shadow formed by red light is: Blue Black Grey Green None 20. Which of the following type of bodies form sharp shadows when placed in the path of light? Transparent Transparent and translucent Translucent Opaque 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.
