If the speed of light in air is \(3 \times 10^8 m/s\) , then the speed of light in a medium of refractive index \(3/2 \) is

If the speed of light in air is \(3 \times 10^8 m/s\) , then the spe

1.	If the speed of light in air is \(3 \times 10^8 m/s\) , then the speed of light in a medium of refractive index \(3/2 \) is
A.	\(2 \times 10^8 m/s\)
B.	\(9/4 \times 10^8 m/s\)
C.	\(3/4 \times 10^8 m/s\)
D.	\(3 \times 10^8 m/s\)
Answer» B. \(9/4 \times 10^8 m/s\)