For transmission of waveform a dielectric medium of permittivity Œµ1 – McqOptions

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1.	For transmission of waveform a dielectric medium of permittivity Œµ1 into a dielectric medium of lower permittivity Œµ2 , (Œµ1 > Œµ2) the critical angle of incidence Œ∏c (relative to the interface) is given by
A.	sin-1
B.	cos-1
C.	tan-1
Answer» D.

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