Solve the Problem Using Snell's Law $\frac { \sin \theta _ { 1 } } { \sin \theta _ { 2 } } = \frac { v _ { 1 } } { v _ { 2 } }$

Solve the problem using Snell's Law: $\frac { \sin \theta _ { 1 } } { \sin \theta _ { 2 } } = \frac { v _ { 1 } } { v _ { 2 } }$
-A light beam in air travels at 2 $2.99 \times 10 ^ { 8 }$ meters per second. If its angle of incidence to a second medium is 77° and its angle of refraction in the second medium is 67°, what is its speed in the second medium (to two decimal
Places) ?

A) $2.91 \times 10 ^ { 8 } \mathrm { mps }$
B) $3.16 \times 10 ^ { 8 } \mathrm { mps }$
C) $2.82 \times 10 ^ { 8 } \mathrm { mps }$
D) $2.75 \times 10 ^ { 8 } \mathrm { mps }$