MCQ on Light- Shadows and Reflections
1………… objects are which emit light by their own.
(A) Luminous
(B) Opaque
(C) Transparent
(D) Translucent
2. Which of the following is /are an example of Luminous objects?
(A) Flame of a burning candle
(B) Sun
(C) Both (A) and (B)
(D) None of the above
3. An …………object is something that allows no light through it.
(A) Transparent
(B) Translucent
(C) Opaque
(D) Luminous
4. Which of the following is/are an example of Opaque objects?
(A) Concrete
(B) Wood
(C) Metal
(D) All of the above
5. The objects through which we can see clearly. Such objects are known as called …………
(A) Translucent
(B) Transparent
(C) Opaque
(D) Luminous
6. Which of the following is/are an example of transparent objects?
(A) Eye glasses
(B) Water
(C) Both (A) and (B)
(D) None of the above
7. The objects through which we can see but not clearly such objects are called
(A) Luminous
(B) Transparent
(C) Opaque
(D) Translucent
8. Which of the following is/ are an example of Translucent objects?
(A) Sunlight
(B) Metal
(C) Glass
(D) Butter paper
9. …………are formed when an opaque object comes in the path of light.
(A) Sliding shadow
(B) Pinhole image
(C) Shadow
(D) None of the above
10. ………………..can be made with simple materials and can be used to image the Sun and brightly lit objects.
(A) Pinhole camera
(B) Digital camera
(C) Both (A) and (B)
(D) None of the above
11. Light travels in a/at ………………
(A) Straight line
(B) Right angle
(C) Speed line
(D) None of the above
12. ………reflection gives us clear image.
(A) Metal
(B) Mirror
(C) Shadow
(D) Pinhole Camera
Answers
1.(A) 2.(B) 3.(C) 4. (D) 5.(B) 6.(C) 7. (D) 8.(D) 9. (C) 10. (A)
11. (A) 12.(B)