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A ray of light passes through an equilat...

A ray of light passes through an equilateral glass prism in such a manner that the angle of incidence is equal to the angle of emergence and each of these angles is equal to 3/4 of the angle of the prism. The angle of deviation is

A

`45^@`

B

`39^@`

C

`20^@`

D

`30^@`

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TARGET PUBLICATION-OPTICS-EXERCISE
  1. The relation between i,e, A and delta for prism is

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  2. The angle of minimum deviation for a prism is 40^(@) and the angle of ...

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  3. A ray of light passes through an equilateral glass prism in such a man...

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  4. A parallel beam of monochromatic light is incident on one surface of a...

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  5. A prism of a refracting angle 60^(@) is made with a material of refrac...

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  6. Thin prism has small .

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  7. A prism of angle 4^@ gives a deviation of 2.4^@. The refractive index ...

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  8. Angular dispersion depends upon

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  9. Which of the following of CORRECT statement?

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  10. The net angular dispersion produced without deviation for crown glass ...

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  11. The refractive index of glass is 1.520 for red light and 1.525 for blu...

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  12. The angular dispersion produced by a prism of angle 5^@ is [nV = 1.665...

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  13. The refractive indices for the light of violet and red colours of any ...

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  14. A spectrum is formed by a prism of dispersive power omega. If the angl...

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  15. Dispersive power depend upon

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  16. The dispersive power (omega) of the material of prism is given by

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  17. The refractive index of the prism for violet colour is 1.7 and that fo...

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  18. Mirage' is a phenomenon due to

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  19. The rainbow is formed due to

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  20. The complete circle of rainbow can be seen when

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