Home
Class 12
PHYSICS
A clear sheet of polaroid is placed on ...

A clear sheet of polaroid is placed on top of a similar sheet so that axews make an angle of `sin^(-1) (4/5)` with each other. The ratio of intensity of the emergent light to that of polarised light is

A

`16:25`

B

`9:25`

C

`4:5`

D

`8:25`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

Unpolarised light falls on two polarising sheets placed one on top of the other. What must be the angle between the characteristic directions of the sheets if the intensity of the final transmitted light is one-third the maximum intensity of the first transmitted beam?

Unpolarised light falls on two polarizing sheets placed one on top of the other. What must be the angle between the characteristic directions of the sheets if the intensity of the final transmitted light is one-third the maximum intensity of the first transmitted beam?

Unpolarized light with intensity I_0 is incident on two polaroids. The axis of the first polaroid makes an angle of 50^@ with the vertical, and the axis of the second polaroid is horizontal. What is the intensity of the light, after it has passed through the second polaroid?

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 tree breaks due to storm and the broken part bends, so that the top of the tree touches the ground making an angle of 60^(@) with the ground . The distance from the foot of the tree to the point where the top touches the ground is 5 metres . Find the height of the tree. ( sqrt(3) = 1.73 )

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).

A mixture of plane polarised and unpolarised light falls normally on a polarising sheet. On rotating the polarising sheet about ther direction of the incident beam, the transmitted intensity varies by a factor of 3. The ratio of intensities I_p and I_p of the polarised and unpolarised components in the incident beam is

Consider a light beam incident from air to a glass slab at Brewster's angle as shown in figure . A polaroid is placed in the path of the emergent ray at point P and rotated about an axis passing through the centre and perpendicular to the plane of the polaroid .

Unpolarized light of intensity I_0 is made to pass through three polarizers P_1, P_2 and P_3 successively. The polarization axis of P_2 makes an angle of theta_1 with that of P_1 , while that of P_3 makes an angle theta_2 with that of the P_2 . What will be the intensity of light coming out of P_3 ?