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If relative permittivity and relative permeability of a medium are 3 and 4/3 respectively. The critical angle for this medium is.(1) 45º (2) 60º (3) 30º (4) 15º |
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Answer» Answer is (3) V = 1/√{μɛ} n = √{μrɛr} = 2 sin c = 1/2 c = 30º |
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