Advertisements
Advertisements
प्रश्न
If the polarising angle for a given medium is 60°, then the refractive index of the medium is.................
विकल्प
`1/sqrt3`
`sqrt(3/2)`
1
`sqrt3`
Advertisements
उत्तर
√3
Refractive index,μ = tan iP
→ μ = tan60°
∴ μ = √3
APPEARS IN
संबंधित प्रश्न
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°.

Why does an unpolarised light incident on a polaroid get linearly polarised ?
Find an expression for intensity of transmitted light when a polaroid sheet is rotated between two crossed polaroids. In which position of the polaroid sheet will the transmitted intensity be maximum?
How does one demonstrate, using a suitable diagram, that unpolarised light when passed through a Polaroid gets polarised?
Show, with the help of a diagram, how unpolarised sunlight gets polarised due to scattering.
Two polaroids P1 and P2 are placed with their pass axes perpendicular to each other. Unpolarised light of intensity I0 is incident on P1. A third polaroid P3 is kept in between P1 and P2 such that its pass axis makes an angle of 60° with that of P1. Determine the intensity of light transmitted through P1, P2 and P3.
The refractive indices of glass and water w.r.t. air are 3/2 and 4/3 respectively. Determine the refractive index of glass w.r.t. water.
What is the Brewster angle for air to glass transition? (Refractive index of glass = 1.5)
State two uses of Polaroid.
The glass plate of refractive index 1.732 is to be used as a polarizer, its polarising angle is _______.
Show using a proper diagram how unpolarised light can be linearly polarised by reflection from a transparent glass surface.
What does a polaroid consist of? How does it produce a linearly polarised light?
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?
What is the difference between polarised light and unpolarised light?
Light transmitted by Nicol prism is ______.
The transverse nature of light is shown in ______.
Discuss about pile of plates.
Mention the types of optically active crystals with example.
Polarisation of light is the only phenomenon that establishes ______.
A polarizer - analyser set is adjusted such that the intensity of light coming out of the analyser is just 10% of the original intensity. Assuming that the polarizer - analyser set does not absorb any light, the angle by which the analyser need to be rotated further to reduce the output intensity to be zero, is ______.
