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The angle of minimum deviation for a pri...

The angle of minimum deviation for a prism is `40^(@)` and the angle of the prism is `60^(@)`. The angle of incidence in this position will be

A

`30^@`

B

`60^@`

C

`50^@`

D

`100^@`

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TARGET PUBLICATION-OPTICS-EXERCISE
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  4. A ray of light passes through an equilateral glass prism in such a man...

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

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

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  7. Thin prism has small .

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

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  9. Angular dispersion depends upon

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  10. Which of the following of CORRECT statement?

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

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

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

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

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  16. Dispersive power depend upon

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

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

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  19. Mirage' is a phenomenon due to

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  20. The rainbow is formed due to

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