The wavelength of sodium light in air is 5890 Å . The velocity of light in air is `3xx10^(8) ms^(-1)`. The wavelength of light in a glass of refractive index 1.6 would be close to

Options

A. 5890 Å
B. 3681 Å
C. 9424 Å
D. 15078 Å

Answer

B

Explanation

Wavelength ` by = (lambda_(a))/(mu_(g)) = (5890)/(1.6)`
= 3681 Å