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Q.

The Brewsters angle $i_{b}$ for an interface should be

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a

$30^{0} < i_{b} < 45^{0}$

b

$45^{0} < i_{b} < 90^{0}$

c

$i_{b} = 90^{0}$

d

$0^{0} < i_{b} < 30^{0}$

answer is B.

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Detailed Solution

detailed_solution_thumbnail

$μ$ is greater than 1
$∴ μ = tanθ$
$∴ θ$ must be greater than $45^{o}$ but less than $90^{o}$

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The Brewsters angle ib for an interface should be