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