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3 years ago

the speed of light in a certain medium is 0.6c. find critical angle , if the index of refraction is 1.67

Physics

1 answer:

baherus [9]3 years ago

4 0

Answer:

$\theta_c = 36.78^o$

Explanation:

The relationship between the refractive index and the critical angle is given as follows:

$\eta = \frac{1}{Sin\ \theta_c} \\\\Sin\ \theta_c = \frac{1}{\eta}\\\\\theta_c = Sin^{-1}(\frac{1}{\eta} )$

where,

η = refractive index = 1.67

θc = critical angle =?

Therefore,

$\theta_c = Sin^{-1}(\frac{1}{1.67} )$

$\theta_c = 36.78^o$

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the speed of light in a certain medium is 0.6c. find critical angle , if the index of refraction is 1.67​

the speed of light in a certain medium is 0.6c. find critical angle , if the index of refraction is 1.67