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If a glass prism is dipped in water, its...

If a glass prism is dipped in water, its dispersive power

A

increases

B

decreases

C

does not change

D

may increase or decrease depending on whether the angle of the prism is less than or greater than `60^(@)`

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DISHA-RAY OPTICS AND OPTICAL INSTRUMNTS-PHYSICS
  1. Which of the following is not due to total internal reflection ?

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  2. A body is located on a wall. Its image of equal size is to be obtained...

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  3. A concave mirror forms the image of an object on a screen. If the lowe...

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  4. A ray of light passes through an equilateral prism (refractive index 1...

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  5. The power of a biconvex lens is 10 dioptre and the radius of curvature...

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  6. A microscope is focused on a mark on a piece of paper and then a slab ...

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  7. What causes chromatic aberration?

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  8. The graph between angle of deviation (delta) and angle of incidence (i...

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  9. The ratio of thickness of plates of two transparent medium A and B is ...

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  10. A rectangular block of glass is placed on a mark made on the surface o...

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  11. If a glass prism is dipped in water, its dispersive power

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  12. In the given figure a plano-concave lens is placed on a paper on which...

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  13. To get three images of a single object, one should have two plane mirr...

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  14. Light propagates with speed of 2.2 xx 10^( 8) m//s and m/s 2.4 xx10 ^(...

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  15. A thin convergent glass lens (mug=1.5) has a power of +5.0D. When this...

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  16. A ray of light travelling inside a rectangular glass block of refracti...

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  17. A small coin is resting on the bottom of a beaker filled with a liquid...

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  18. A ray PQ incident on the refracting face BA is refracted in the prism ...

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  19. When a biconvex lens of glass having refractive index 1.47 is dipped i...

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  20. Show that the angle of deviation produced by a thin prism is reduced t...

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