Tag: polarisation
Questions Related to polarisation
The polarizing angle of glass is $57^{\circ}$. A ray of light which is incident at this angle will have an angle of refraction as
When a beam of light wavelength $\lambda$ is incident on the surface of a liquid at an angle $\phi$, the reflected ray in completely polarized. The wavelength of light in the liquid medium is
At a time, the image of sun formed due to reflection at air-water interface, is found to be highly polarized. If refractive index of water is $\mu =\dfrac{4}{3}$, then the angle of the sun above the horizon is ?
Two polarising plates have polarising directions parallel, so as to transmit maximum intensity of light. Through what angle must either plate be turned, if the intensities of the transmitted beam is to drop by half.
The velocity of light in air is $3\times 10^{^{8}}m/s$ and in medium is $\sqrt 3 \times 10^{^{8}}m/s$. The Brewster's angle of a medium is:
A Polaroid is placed at $45^0$ to an incoming light of intensity $I _0$. Now the intensity of light passing through Polaroid after polarization would be
A ray of unplorised incident on a glass plate at the polarising angle $57^{o}$. Then
The critical angle for a medium is $ 45^o $ What is polarising angle? Angle refraction ?
When sun light is incident on water at an angle of $ 53^o $ the reflected light is found to be completely plane-polarised. Determine : (i) angle of refraction of light,
(ii) refractive index of water.
The angle between polariser and analyser is $30 ^ { \circ }$ The ratio of intensity of incident light and transmitted by the analyser is