Question

Critical Angle of a liquid is 46⁰. What will be its Refractive index?

Answer 1

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Answer 2

The refractive index of liquid is 1.1

Given - Critical angle

Find - Refractive index

Solution - As per the known relation between critical angle and refractive index, the formula is -

meu = 1/sin critical angle

Keep the values in formula to find the refractive index of liquid.

Meu = $\frac{1}{ \sin(46) }$

The value of sin 46° is 0.9. So, keeping the value of sin 46° in above equation to find the refractive index of liquid.

meu = $\frac{1}{0.9}$

Performing Division to find the value of refractive index of liquid

meu = 1.1

Hence, the refractive index of liquid is 1.1.

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