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A circular disc of which 2//3 part is co...

A circular disc of which `2//3` part is coated with yellow and `1//3` part is with blue . It is rotated about its central axis with high velocity. Then it will be seen as

A

green

B

blue

C

white

D

yellow

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TARGET PUBLICATION-OPTICS-EXERCISE
  1. On heating a liquid, the refractive index generally

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  2. The fine powder of a coloured glass is seen as

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  3. A circular disc of which 2//3 part is coated with yellow and 1//3 part...

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  4. Light enters at an angles of incidence in a transparent rod of refract...

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  5. A glass prism (mu = 1.5) is dipped in water (mu = 4//3) as shown in fi...

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  6. An isosceles prism of angle 120^(@) has a refractive index of 1.44. Tw...

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  7. When light is incident on a medium at angle i and refracted into a sec...

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  8. Immixable transparent liquids A,B,C,D and E are placed in a rectangula...

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  9. A fish at a depth of sqrt(7) cm bleow the surface of water sees the ou...

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  10. A ray of light is incident normally on one of the faces of a prism of ...

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  12. A, B, C in the diagram represent rays of light incident upon a face of...

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  13. In the given figure, the principal section of a glass prism is an isos...

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  15. If the critical angle for the material of a prism is C and the angle o...

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  17. If a lens is cut into two pieces perpendicular to the principal axis a...

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  18. Assertion : A concave mirror and convex lens both have the same lengt...

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  19. A ray of monochromatic light is incident on one refracting face of a p...

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  20. A ray of light passing through a prism having refractive index sqrt(2)...

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