Light solved MCQs

1. If the angle of incidence of light falling on a plane mirror is 30degree, what will bethe angle of reflection?

a. 90 degree

B. 60 degree

c. 30 degree

d. 0 degree

2. Whe we stand in front of our dressing table, our left hand seems to be right andright seems to be left. This is called

a. Left-right confusion

B. Lateral inversion

c. Up -side down phenomenon

d. mirage

3. Light passing through a prism splits into its colour. This is called

a. Dispersion

B. Dissolution

c. Division

d. None of the above

4. Rainbow is a natural phenomenon showing

a. Reflection

B. Refraction

c. Dispersion

d. Diversion

5. In the retina of the eye, the area having no sensory cells is called

a. iris

B. Blind spot

c. cornea

d. Dark spot

6. If light falls perpendicularly on a plane mirror, what will be the angle in which it willbe reflected?

a. 45 degree

B. 90 degree

c. 180 degree

d. 360 degree

7. Which of the following is not luminous object?

a. sun

B. candle

c. moon

d. Tube light

8. To make a kaleidoscope we require

a. Three plane mirrors

B. Four plane mirrors

c. Three glass sheets

d. Four glass sheets

9. In our eye _______cells can sense colour

a. Rod

B. Cone

c. Both rod and cone

d. Neither rod nor cone

10. An owl can see clearly at night but not day time because it has

a. More rods and few cones

B. Less rod and more cones

c. More rods and more cone

d. Less rods and less cones

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