Home
Class 12
PHYSICS
Two polarising sheets are placed with th...

Two polarising sheets are placed with their planes parallel, so that light intensity transmitted is max. Through what angle must either sheet be turned so that light intensity drops to half the maximum value ?

A

`30^@`

B

`45^@`

C

`60^@`

D

`70^@`

Text Solution

Verified by Experts

`cos^2 theta=1/2 therefore theta=45^@`
Promotional Banner

Similar Questions

Explore conceptually related problems

Two polarising sheets have their polarising directions parallel to each other so that the intensity of transmitted light is maximum. The angle through wihich the either sheet must be turned so that intensity becomes one half the intial value is

When a polaroid sheet is rotated between two crossed polaroids, the intensity of the transmitted will be maximum, when angle theta between pass axes is

Two polaroid's are oriented with their planes perpendicular to incident light and transmission axis making an angle of 30^(@) with each other. What fraction of incident unpolarized light transmitted?

Two polaroids are placed such that their planes are parallel to each other with their access of transmission at 30°. If an unpolarised light of intensity I_0 is incident on first polaroid polarizer then intensity of light that will be transmitted through the second polaroid is

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)

Discuss the intensity of transmitted light when a polaroid sheet is rotated between two crossed polaroids?

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?

A polariser and an analyser are oriented so that maximum light is transmitted what will be the intensity of outcoming light when analyer is rotated through 60^(@) .

Define the term 'linearly polarised light'. When does the intensity of transmitted light become maximum, when a polaroid sheet is rotated between two crossed polaroids ?

When an unpolarized light of intensity I_0 is incident on a polarizing sheet, the intensity of the light which dows not get transmitted is