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प्रश्न
What is unpolarised light?
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उत्तर
A transverse wave that has vibrations in all directions in a plane perpendicular to the direction of propagation is said to be unpolarised light.
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संबंधित प्रश्न
For a glass plate as a polariser with refractive index 1.633, calculate the angle of incidence at which light is polarised.
Three identical polaroid sheets P1, P2 and P3 are oriented so that the pass axis of P2 and P3 are inclined at angles of 60° and 90° respectively with the pass axis of P1. A monochromatic source S of unpolarised light of intensity I0 is kept in front of the polaroid sheet P1 as shown in the figure. Determine the intensities of light as observed by the observer at O, when polaroid P3 is rotated with respect to P2 at angles θ = 30° and 60°.
What dose a polaroid consist of?
Why does an unpolarised light incident on a polaroid get linearly polarised ?
Show, via a suitable diagram, how unpolarised light can be polarised by reflection.
State any two methods by which ordinary light can be polarised
Unpolarised light is incident on a polaroid. How would the intensity of transmitted light change when the polaroid is rotated?
Green light is incident at the polarising angle on a certain transparent medium. The angle of refraction is 30° . Find
(i) polarising angle, and
(ii) refractive index of the medium.
A ray of light is incident on a transparent medium at a polarizing angle. What is the angle between the reflected ray and the refracted ray?
A ray of ordinary light is travelling in air. It is incident on air glass pair at a polarising angle of 56°. Find the angle of refraction in glass.
Greenlight is an incident at the polarising angle on a certain transparent medium. The angle of refraction is 30°.
Find
(i) polarising angle, and
(ii) refractive index of the medium.
What is a polariser?
State and obtain Malus’ law.
What is the angle of polarisation and obtain the equation for an angle of polarisation?
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A plane mirror produces a magnification of
Can reflection result in plane polarised light if the light is incident on the interface from the side with higher refractive index?
An unpolarized light beam is incident on the polarizer of a polarization experiment and the intensity of light beam emerging from the analyzer is measured as 100 Lumens. Now, if the analyzer is rotated around the horizontal axis (direction of light) by 30° in clockwise direction, the intensity of emerging light will be ______ Lumens.
