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  • Light enters from air to glass having refractive index . Calculate the speed of light in the glass. Given : The speed of light in vacuum is<img alt="=3\times 10^{8}\; m/s

Light enters from air to glass having refractive index 1.50. Calculate the speed of light in the glass.
Given : The speed of light in vacuum is=3\times 10^{8}\; m/s

 

 

 

 
 
 
 
 

Answers (1)

Refractive index of glass, n_{g}=1.50

Speed of light in vaccum C=3\times 10^{8}\; m/s

Refractive index of medium =\frac{speed \; of\; light\; in\; vaccum (C)}{Speed \; of\; light\; in\; medium (V)}=\frac{C}{V}

Speed of light in glass(V) =\frac{C}{n_{g}}=\frac{3\times 10^{8}m/s}{1.5}

                                           =2\times 10^{8}\; m/s

Posted by

Sumit Saini

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