Question

wave length of light in water&glass are 4000A degree & 2500A degree respectively. Find refractive index of glass with respect to water

Answer 1

Given -
Wavelength of light in water = 4000A°
wavelength of light in glass = 2500A°
To find - Refractive index of glass with respect to water
Solution -
$\mu = \frac{ \lambda(1)}{ \lambda(2)}$
then substituting the values we get
$\mu = \frac{4000}{2500}$
therefore Refractive index of glass is
$\mu(g) = 1.6$