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The critical angle of a medium for a spe...

The critical angle of a medium for a specific wavelength if the medium has relative permittivity 3 and relative permeability `(4)/(3)` for this wavelength will be :

A

`15^(@)`

B

`30^(@)`

C

`60^(@)`

D

`45^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
`V = (1)/(sqrt(mu epsilon)) , n = sqrt(mu _(r) epsilon_(r)) = 2 `
`sin c = (1)/(2)`
`c = 30^(@)`
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