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A yellow light travels from rarer medium...

A yellow light travels from rarer medium to denser medium. At the critical angle the ray will

A

graze along the surface with angle of refracton of `90^@`.

B

be reflected back only.

C

be dispersed into other medium.

D

be refracted into denser medium.

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TARGET PUBLICATION-OPTICS-EXERCISE
  1. Which of the following is a CORRECT statement?

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  2. When a monochromatic ray of light travels from an optically denser med...

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  3. A yellow light travels from rarer medium to denser medium. At the crit...

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  4. The angle of incidence corresponding to which the angle of refraction ...

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  7. Critical angle of light passing from glass to air is maximum for

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  10. The principle used in optical fibre is .

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  11. Optical fibre consists of large number of

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  12. Consider telecommunication through optical fibres. Which of the follow...

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  13. When a light is incident at one end of the fibre at a small angle, the...

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  14. The light entering into the fibre suffers

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  15. If I is the intesity of light entering into the optical fibre and IC i...

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  16. In periscopes, totally reflecting prisms are used which turns the ray ...

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  17. While deriving expression for refraction at single curved, surface, ...

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