A light of intensity 100 Wm^-2 strikes a...

A light of intensity 100 `Wm^-2` strikes a film at `57^@`. Find the intensity of transmitted light.

Text Solution

Verified by Experts

`I=I_(0) cos^2 theta, cos^2 theta(0.5446)^2=0.2966`
`therefore 1=100xx0.2966=29.66 Wm^(-2)`

Topper's Solved these Questions

WAVE OPTICS
SUBHASH PUBLICATION|Exercise FIVE MARKS QUESTIONS WITH ANSWERS|11 Videos
SUPPLEMENTARY EXAMINATION QUESTION PAPER JULY 2017
SUBHASH PUBLICATION|Exercise QUESTION|35 Videos

Similar Questions

Explore conceptually related problems

Three polaroid sheets P_(1), P_(2) and P_(3) are kept parallel to each other such that the angle between pass axes of P_(1) and P_(2) is 45^(@) and between P_(2) and P_(3) is 45^(@) . If unpolarised beam of light of intensity 128 Wm^(-2) is incident on P_(1) . What is the intensity of light coming out of P_(3) ?

Two polaroid sheets are placed in such way that one is inclined at an angle of 47^@ and the second at 63^@ . If the intensity of incident light is 1000 Wm^(-2) , then find the intensity of light at the transmitted ends of the sheets.

A polaroid is placed at 45^@ to an incoming light of intensity I_0 . Find the intensity of light passing through polaroid after polarisation.

An unpolarised beam of intensity I_(0) falls on a polaroid . The intensity of the emergent light is

Unpolarized light of intensity 32 W//m^2 is incident on the combination of three polaroids. The first and last polaroids are crossed. If the intensity of the light transmitted through the combination be 3 W//m^2 , then what is the angle between the transmission axes of first two polaroids ?

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

Frequencies of light incident on a system of scattering particles are in the ratio of 1 : 2 . Then , the intensity of scattered light in a particular direction is ….

Two nicol prisms are inclined to each other at 30^@ . If I be the intensity of the light incident on the first prism, then the intensity of the light emerging from the second prism will be

SUBHASH PUBLICATION-WAVE OPTICS-NUMERICALS WITH SOLUTIONS

In an experiment with a microscope, light of wave length 4240 overset(...
Text Solution
|
Calculate the resolving power of a microscope, whose limit of resoluti...
Text Solution
|
The semi vertical angle subtended by two points of an object at the ob...
Text Solution
|
If the limit of resolution of the eye is 1' of an arc then calculate i...
Text Solution
|
A telescope of aperture 0.02 m is used to focus the two head lamps 1.2...
Text Solution
|
A telescope of aperture 0.15 m is used to view two heavenly separated ...
Text Solution
|
The angular width of central maximum is 0.1^@ If the width of the sing...
Text Solution
|
Calculate the angular width of 2^(nd) secondary maximum and fourth dar...
Text Solution
|
Refractive index of glass is 1.5. Find the polarising angle for air-gl...
Text Solution
|
Polarising angle for water is 53 8'. Find the critical angle for air-w...
Text Solution
|
Refractive index of glass is 1.5 and of diamond is 2.42. Calculate the...
Text Solution
|
A ray of light is incident on the surface of a glass plate of R.I 1.55...
Text Solution
|
If three fringes are missing in front of the double slit then express ...
Text Solution
|
Calculate the semi angular width of the fifth bright fringe from the c...
Text Solution
|
If the distance between the double slit and the screen is doubled and ...
Text Solution
|
A bright fringe is formed in front of one of the double slits. What wi...
Text Solution
|
A light of intensity 100 Wm^-2 strikes a film at 57^@. Find the intens...
Text Solution
|
Two polaroid sheets are placed in such way that one is inclined at an ...
Text Solution
|
A ray of light is incident on the surface of a glass plate of R.I 1.55...
Text Solution
|
In a single slit diffraction experiment, the width of the slit is made...
Text Solution
|