Advertisements
Advertisements
प्रश्न
What is plane polarised light?
Advertisements
उत्तर
If the vibrations of a wave are present in only one direction in a plane perpendicular to the direction of propagation of the wave is said to be polarised or plane polarised light.
APPEARS IN
संबंधित प्रश्न
If the polarising angle for a given medium is 60°, then the refractive index of the medium is.................
Draw a neat labelled diagram showing the plane of vibration and plane of polarisation for polarised light.
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?
Show, using a simple polaroid, that light waves are transverse in nature. Intensity of light coming out of a polaroid does not change irrespective of the orientation of the pass axis of the polaroid. Explain why.
How does one demonstrate, using a suitable diagram, that unpolarised light when passed through a Polaroid gets polarised?
Show, via a suitable diagram, how unpolarised light can be polarised by reflection.
What is the Brewster angle for air to glass transition? (Refractive index of glass = 1.5)
When a low flying aircraft passes overhead, we sometimes notice a slight shaking of the picture on our TV screen. Suggest a possible explanation.
State two uses of Polaroid.
Show using a proper diagram how unpolarised light can be linearly polarised by reflection from a transparent glass surface.
With the help of an experiment, state how will you identify whether a given beam of light is polarised or unpolarized?
What does a polaroid consist of? How does it produce a linearly polarised light?
Light transmitted by Nicol prism is ______.
State and obtain Malus’ law.
A plane mirror produces a magnification of
Which of the following phenomena is not common to sound and light waves?
Consider a light beam incident from air to a glass slab at Brewster’s angle as shown in figure. A polaroid is placed in the path of the emergent ray at point P and rotated about an axis passing through the centre and perpendicular to the plane of the polaroid.
