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The critical angle of light from medium ...

The critical angle of light from medium A to medium B is `theta`. The speed of light in medium A is v. the speed of light in medium B is

A

v cos`theta`

B

`v//costheta`

C

vsin`theta`

D

`v//sintheta`

Text Solution

Verified by Experts

The correct Answer is:
d.
Clearly, x is denser medium.
Now, `(sintheta)/(sin90^(@))=(1)/(Y^(mu)X)`
`X^(mu)Y=(v)/(v^('))`
or `v^(')=(v)/(sintheta)`
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