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A ray of light enters in denser medium f...

A ray of light enters in denser medium from rarer medium. Speed of light in rarer medium is double than that in denser medium, what is the critical angle for total internal reflection ?

A

`30^@`

B

`45^@`

C

`60^@`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A, C
`n=(v_("rarer"))/(v_("denser"))=2`
`thereforesinC=1/n=1/2` `thereforeC=30^@`
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