Physical Optical Physics Multiple Choice Questions
1. When the interference of light was proposed:
A. 1825
B. 1830
C. 1810
D. 1805
E. None of these
2. X-rays was discovered in
A. 1898
B. 1900
C. 1895
D. 1880
3. Which one of the following is an example of a non-luminous object?
A. The sun
B. The moon
C. Candle
D. An electric bulb
4. A light detect by our color is…
A. ROYGBIV, rainbow color form
B. RGB form
C. The simple form of a particular color
D. None of these
5. Which of the following Symbol is used to represent the speed of light in vacuum or air is
A. a
B. l
C. v
D. c
6. Convex mirror formed image is______
A. Real, erect and magnified
B. Virtual, real
C. Virtual, erect and diminished
D. Real and inverted
7. Which of the two types of lenses are correct?
A. Living and non living
B. Small and large
C. Transpiring and respiring
D. Converging and diverging
8. Radius of curvature is______
A. 30 cm
B. 45 cm
C. 14 cm
D. 8.5 cm
9. Which of the following is example of Non-luminous objects?
A. Moon
B. sun
C. Transparent
D. Opaque objects
10. When a convex lens has a focal length of 20cm, what is the power in dioptre is
A. 4
B. 6
C. 0.5
D. 5
11. What is the SI unit of power of lense…
A. cm
B. dioptre
C. watt
D. meter
11. Convex of the lens is also used to____
A. Diverging lens
B. Refracting lens
C. Converging lens
D. Both A and C
E. None of these
12. How a virtual image is formed_____
A. Telescope
B. Simple microscope
C. Slide projector in the cinema
D. Ordinary camera
E. None of these