Home
Class 12
PHYSICS
On a hot summer night, the refractive in...

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

A

(A) becomes narrower.

B

(B) goes horizontally without any deflection.

C

(C) bends downwards.

D

(D) bends upwards.

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

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:

For passage of monochromatic beam of light in a medium of refractive index 1.5, the plane wavefront makes an andlge of 60^@ with the refracting surface. The width of beam in medium to that in air is

An parallel beam of monochromatic light is incident on a glass slab at an angle of incidence 60^@ . Find the ratio of the width of the beam in glass to that in air, if the refractive index of glass is 1.5.

A beam of menochromatic blue light of wavelength 4200 Ål in air travels in water of refractive index 4/3. its wavelength in water will be

A paralel beam of monochromatic light is incident on a glass slab at an angle of incidentce 45^@ . Find the ratio of width of beam in glass to that in air ( If refractive index of glass is 1.5).

When the same monochromatic ray of light travels through glass slab and through water, the number of waves in glass slab of thickness 6 cm is same as in water column of height 7 cm. If refractive index of glass is 1.5 , then refractive index of water is

The wavelength of a beam of light in glass is 4400 overset (@)(A) What is its wavelength in air , if refractive index of glass is 1.5 ?

A light beam is travelling from Region I to Region IV (Refer Figure). The refractive index in Regions I, II , III and IV are n_(0), (n_(0))/(2), (n_(0))/(6) and (n_(0))/(8), respectively. The angle of incidence theta for which the beam just misses entering Region IV is