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At what angle ,a ray of light will incid...

At what angle ,a ray of light will incident on one face of an equilateral prism,so that the emerget ray may graze the second surface of the prism(=1.5)?

A

`38^@`

B

`82^@`

C

`28^@`

D

`48^@`

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
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  2. Which of the following is true for rays coming from infinity?

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  3. At what angle ,a ray of light will incident on one face of an equilate...

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  9. C.V. Raman received Nobel Prize for the discovery of the following phe...

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  15. The ability of eye-lens to adjust its focal length is called……. .

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  18. To increse magnifying power of telescope,we sould increase:

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  19. A telescope has focal elngth of objective and eyepiece as 200 cm and 5...

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