Question #54ef3

1 Answer
Apr 25, 2017

#(n_1)/(n_2)=(v_2)/(v_1)#,

Where n is the refractive index of the medium
and v is the speed of light in the medium.

Explanation:

Index of refraction, #n=c/v#.

Thus, #nv=constant#.

#n_1v_1 = n_2 v_2#
#(n_1)/(n_2)=(v_2)/(v_1)#