Question

For a colour of light the wavelength in air is 6000 o a and in water the wavelength is 4500 o



a. Then the speed of light in water will be

Answer 1

Answer:

2.25*10^8 m/s

Explanation:Refractive index n=l/l' ;l-wavelength

n=c/v ;c-speed of light in vaccum=3*10^8m/s