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A prism of angle 4^@ gives a deviation o...

A prism of angle `4^@` gives a deviation of `2.4^@`. The refractive index of the material of the prism is

A

1.5

B

1.55

C

1.6

D

1.8

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TARGET PUBLICATION-OPTICS-EXERCISE
  1. A prism of a refracting angle 60^(@) is made with a material of refrac...

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  2. Thin prism has small .

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

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  4. Angular dispersion depends upon

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  5. Which of the following of CORRECT statement?

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

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

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

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

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

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  11. Dispersive power depend upon

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

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

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  14. Mirage' is a phenomenon due to

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  15. The rainbow is formed due to

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  16. The complete circle of rainbow can be seen when

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  17. To observe any rainbow the altitude of sun or the angle made by the su...

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  18. The primary rainbow is due to internal reflection inside droplet and ...

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  19. Angular width of primary rainbow is

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  20. The average angle of inclination of the primary rainbow with the axis ...

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