On a hot summer night the refractive index of air is smallest near the ground and increases with height from the ground. When a light beam is directed horizontally the Huygen's principle leads us to conclude that as it travels the light beam

On a hot summer night, the refractive index of air is smallest near the ground and increases with height from the ground. When a light beam is directed horizontally, the Huygens principal leads us to conclude that as it travels, the light beam:

On a hot summer night, the refractive index of air is smallest near the ground and increases with height from the ground. When a light beam is directed horizontally, the Huygens principal leads us to conclude that as it travels, the light beam:

On a hot summer night, the refractive index of air is smallest near the ground and increases with height from the ground. When a light beam is directed horizontally, the Huygens principal leads us to conclude that as it travels, the light beam:

Assertion :- Mirage appears in hot summer days. Reason :- Refractive index of air decreases with height from hot surface

According to Huygens' principle, during refraction of light from air to a denser medium

The refractive index of a medium is sqrt3 When light travels from air to that medium the Brewster angle will be _______(fill in the blank)

An initially parallel cylindical beam travels in a medium of refractive index mu(I)=mu_0+mu_2I ,where mu_0 and mu_2 are positive constants and I is the intensity of the light beam.The intensity of the light beam is decreasing with increasing radius. The speed of the light in the medium is