Home
Class 12
PHYSICS
Light from sodium lamp is made to pass t...

Light from sodium lamp is made to pass through two polaroids placed one after the other in the path of light. Taking the intensity of the incident light as `100%`, the intensity of the out coming light that can be varied in the range

A

`0% " to "100 %`

B

`0% " to "50 %`

C

`0% " to "25 %`

D

`0% " to "75 %`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

Unpolarised light passes through two polaroids, the axis of one is vertical and that of the other is at 45^(@) to the vertical. Then, the intensity of the transmitted light is

Unpolarized light passes through two polaroids, the axis of one is vertical and that of the other is 30^@ to the vertical . What is the orientation and intensity of the transmitted light ?

At what angle should the axes of two polaroids be placed so as to reduce the intensity of incident unpolarized light to 1//3 .

An unpolarized light is successively throgh two polaroids, each with their transmission axis parallel. If the intensity of unpolarized light be l_(0) , then intesity of the light after emerging from second polarizer will be

What is meant by a linearly polarised light? Which type of waves can be polarised? Briefly explain a method for producing polarised light. Two polaroids are placed at 90^(@) to each other and the intensity of transmitted light is zero. What will be the intensity of transmitted light when one more polaroid is placed between these two bisecting the angle between them ? Take intensity of unpolarised light as I_(0)

The polariser and analyser are inclined to each other at 60^(@) . If I/2 is the intensity of the polarised light emergent from analyser. Then the intensity of the unpolarised light incident on the polariser is

When a plane polarised light is passed through an analyser and analyser is rotated through 90^(@) , the intensity of the emerging light

If there is zero absorption in the polaroid and if the intensity of plant-polarized light coming out of polaroid is A^2 , then the intensity of the incident beam will be

The polariser and analyser are inclined to each other at 60^(@) . The intensity of polarised light emerging from polariser is I. The intensity of the unpolarised light incident on the polariser is

(a) Light, from a sodium lamp, is passed through two polaroid sheets P_(1) and P_(2) kept one after the other. Keeping P_(1) fixed, P_(2) is rotated so the its 'pass-axis' can be at different angles, theta, with respect to the pass-axis of P_(1) An experimentalist records the following data for the intensity of light coming out P_(2) as a function of the angle theta. [ I_(0)= Intensity of beam falling on P_(1) ] One of these observation is not is agreement with expected theoretical variation of l. ldentify this observation and write the correct expression. (b) Define Brewster angle and write the expression for it in terms of the refractive index of the medium.