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