Home
Class 12
PHYSICS
A ray of light passes normally through a...

A ray of light passes normally through a slab `mu=1.5` of thickness `t`. If the speed of light in vaccum be `c`, then time taken by the ray to go across the slab will be

A

`(t)/(c )`

B

`(3t)/(2c)`

C

`(2t)/(3c)`

D

`(4t)/(9c)`

Text Solution

Verified by Experts

The correct Answer is:
B
`t'=(mux)/(c )=(3x)/(2c)=(3t)/(2c)`
Promotional Banner

Topper's Solved these Questions

  • EXPERIMENTAL PHYSICS

    NARAYNA|Exercise Level-v(Single answer)|23 Videos

  • EXPERIMENTAL PHYSICS

    NARAYNA|Exercise Multiple answer|6 Videos

  • ELECTROSTATICS AND GAUSS LAW

    NARAYNA|Exercise Intergers type question|11 Videos

  • MAGNETISM

    NARAYNA|Exercise LEVEL-II (H.W)|24 Videos

Similar Questions

Explore conceptually related problems

A ray of light passes through a glass plate of thickness and refractive index mu if the speed of light in vacuum is c ,then the time taken by light in passing through the plate will be-

A ray of light strikes a glass slab (R.l. = mu ) of finite thickness t. The emerging light is

Light travels through a glass plate of thickness t and refractive index mu. If c is the speed of light in vacuum, the time taken by light to travel this thickness of glass is

A ray of light is incident normally on a glass slab of thickness 5 cm and refractive index 1.6. The time taken to travel by a ray from source to surface of slab is same as to travel through glass slab. The distance of source from the surface is

Light travels through a glass plate of thickness t, having refractive index mu . If c is the velocity of light in vaccum, then the time taken by light to travel this thicness of glass is

A light ray falling at an angle of 53^@ with the surface of a clean slab of ice of thickness 1.00m is refracted into it at an angle of 37^@ . Calculate the time taken by the light rays to cross the slab. Speed of light in vaccum =3xx10^8m//sec .

When a ray of light passes through glass slab, refraction of light occurs___

A light ray falling at an angle of 45^@ with the surface of a clean slab of ice of thickness 1.00 m is refracted into it at an angle of 30°. Calculate the time taken by the light rays to cross the slab. Speed of light in vacuum = 3 xx 10^8ms^-1

A light ray falling an agnle of 60^(@) with the surface of a clean slab of thickness 1.00m is refracted into, it an angle of 15^(@) . Calculate the time taken by the light rays to cross the slab. Speed of light in vacumm = 3xx10^(9) m//s