When light goes from a certain substance into air, the critical angle is $30^{0}$ . What is the refractive index of the substance?

0.5

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Solution

The correct option is D 2
$C = 30^{0}$

$μ = \frac{1}{s i n C} = \frac{1}{s i n 30^{0}} = 2$

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When light goes from a certain substance into air, the critical angle is 300. What is the refractive index of the substance?

The correct option is D 2C=300μ=1sinC=1sin300=2

When light goes from a certain substance into air, the critical angle is $30^{0}$ . What is the refractive index of the substance?

The correct option is D 2
$C = 30^{0}$

$μ = \frac{1}{s i n C} = \frac{1}{s i n 30^{0}} = 2$