question_answer

Light enters from air to glass having refractive index 1.50. What is the speed of light in glass? The speed of light in air is \[3\times {{10}^{8}}\,m/s\]

A) \[1\times {{10}^{8}}\,m/s\]

B) \[2\times {{10}^{8}}\,m/s\]

C) \[3\times {{10}^{8}}\,m/s\]

D) \[4\times {{10}^{8}}\,m/s\]

E) None of these