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प्रश्न
What dose a polaroid consist of?
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उत्तर
polaroid consists of long-chain molecules aligned in a particular direction
संबंधित प्रश्न
How does one demonstrate, using a suitable diagram, that unpolarised light when passed through a Polaroid gets polarised?
A ray of light passes from a vacuum to a medium of refractive index (μ). The angle of
incidence is found to be twice the angle of refraction. The angle of incidence is _______.
A) `cos^(-1)(mu/2)`
B) cos−1(μ)
C) `2 cos^(-1) (mu/2)`
D) `2 sin^(-1) (mu/2)`
Unpolarised light is incident on a polaroid. How would the intensity of transmitted light change when the polaroid is rotated?
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 polarisation?
What is unpolarised light?
Discuss about Nicol prism.
How is polarisation of light obtained by scattering of light?
For the same objective, find the ratio of the least separation between two points to be distinguished by a microscope for light of 5000 Å and electrons accelerated through 100 V used as the illuminating substance.
To ensure almost 100 per cent transmissivity, photographic lenses are often coated with a thin layer of dielectric material. The refractive index of this material is intermediated between that of air and glass (which makes the optical element of the lens). A typically used dielectric film is MgF2 (n = 1.38). What should the thickness of the film be so that at the center of the visible spectrum (5500 Å) there is maximum transmission.
