Home
Class 12
PHYSICS
A beam of light of wavelength 6400 overs...

A beam of light of wavelength 6400 `overset (@)(A)` is incident normally on a parallel glass plate of 5cm thick and R.I 1.6 . The beam takes the same to travel from source to incident surface and through the glass plate . The distance of source from incident surface is

A

7.5 cm

B

6 cm

C

10 cm

D

8 cm

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

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

A parallel beam of light ( lambda= 6000 overset@A ) is incident normally on a narrow slit of width 0.3 mm. The angular separation between, the first two minima is

Light of wavelength 6000 overset (@)(A) is incident normally on a slit . The first minimum in the diffraction pattern is observed to be at a distance of 6 mm from the central maximum on a screen , which is at a distance of 2 m from the slit . Calculate the width of the slit .

A monochromatic light of wavelength 4800 A travelling in air is incident on a glass slab of refractive index 1.5, its wavelenght in glass slab is

Light of wavelength 5000 overset (@)(A) falls on a plane reflecting surface. What are the wavelength and frequency of the reflected light ? For what angle of incidence is the reflected ray normal to the incident ray ?

A beam of light from a source L is incident normally on a plane mirror fixed at a certain distance x from the source. The beam is reflected back as a spot on a scale placed just above the source L. When the mirror is rotated through a small angle theta , the spot of the light is found to move through a distance y on the scale. The angle theta is given by

A ray of light is inciden rormally on a glass slab of refractive index mu of thckness 'd' which is at a distance x from the glass. The ray of light takes same time to reach from source to slab and to reach from sorce to slab and to pass through the slab. The thickness of the slab is

Monochromatic light of wavelength 6000 overset@ (A) travels through a glass of refractive index frac(3)(2) . The distance travelled by the light in 1 picosecond is

A ray of light is incident on the surface of a glass plate of index of refraction 1.55 at the polarizing angle. Calculate the angle of refraction.

A ray of light falls on a glass plate of refractive index mu=1.5 . What is the angle of incidence of the ray if the angle between the reflected and refracted rays is 90^@ ?