If the critical angle for total internal reflection from a medium to vacuum is 30o. Then velocity of light in the medium is:
The velocity of light in air is 3×108 m/s and in a medium is √3×108 m/s. The Brewster’s angle of the medium is
A ray of light travelling from medium I in which speed of light is 2×108 m/s to a medium II in which speed of light is 1.5×108 m/s. Choose the correct ray diagram:
I. u=2×108 m/s
II. v=1.5×108 m/s
For diamond, if critical angle is 30∘ (outside medium is air with μ=1), then speed of light in diamond and wavelength of yellow colour in diamond (λyellow in air=600 nm) are respectively
Find out the angle of refraction when a light travels from medium A to medium B.
Speed of light in A =2×108 m/s Speed of light in B =3×108 m/s
(1) The speed of light in a transparent medium is 2.4 × 108 m/s. Calculate absolute refractive index of the medium.
(2) The speed of light in water and glass is 2.2 × 108 m/s and 2 × 108 m/s, respectively. What is the refractive index of −
(a) water w.r.t. glass
(b) glass w.r.t. water.
(3) Refractive index of water is 4/3 and speed of light in air is 3×108 m/s. Find speed of light in water.