Question

Monochromatic light of wavelength 600 nm is incident from air on a glass surface what are wavelength frequency and speed of reflected light refractive index of glass is 1.5

Answer 1

Explanation:

Given that,

Wavelength of the monochromatic light, λ = 600 nm = 600 × 10⁻⁹ m

Refractive index of glass, n = 1.5

Frequency is given by :

$\nu=\dfrac{c}{\lambda}$

c = speed of light

$\nu=\dfrac{3\times 10^8}{600\times 10^{-9}}$

υ = 5 × 10¹⁴ Hz

Speed of refracted light is given as :

$v'=\dfrac{c}{n}$

$v'=\dfrac{3\times 10^8}{1.5}$

$v'=2\times 10^8\ m/s$

Hence, this is the required solution.