Assertion -If Brewster-s angle be - then critical angle is sin -1- Reason- - -1-sin c

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Standard XII

Physics

Brewster's Angle

Assertion :If...

Question

Assertion :If Brewster's angle be $θ$ , then critical angle is ${sin}^{- 1} cot θ$ Reason: $μ = \frac{1}{sin c}$

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
The refractive index of the refractive medium is equal to the tangent of the angle of polarisation i.e.,
$μ = tan θ = \frac{1}{sin c}$

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Assertion :If Brewster's angle be θ, then critical angle is sin−1cotθ Reason: μ=1sinc

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for AssertionThe refractive index of the refractive medium is equal to the tangent of the angle of polarisation i.e.,μ=tanθ=1sinc

Assertion :If Brewster's angle be $θ$ , then critical angle is ${sin}^{- 1} cot θ$ Reason: $μ = \frac{1}{sin c}$

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
The refractive index of the refractive medium is equal to the tangent of the angle of polarisation i.e.,
$μ = tan θ = \frac{1}{sin c}$