Question

If the refraction index of amber is 1.55, what is the speed of light through amber? (The speed of light through a vacuum is 3.00 x 108 m/s)
A.

0 m/s

B.

1.94 x 108 m/s

C.

4.65 x 108 m/s

D.

5.17 x 10-9 m/s

Answer 1

1.55/1 =3.00 x 10^8/v

Hence in amber has a light velocity of

v= 1.934 x 10^8 m/s