Tag: wave optics
Questions Related to wave optics
Assertion: Radio waves can'be polarised.
Reason: Sound waves in air are longitudinal in nature.
A parallel beam of natural light is incident at an angle of 58$^{\circ}$ on a plane glass surface. The reflected beam is completely linearly polarized(tan 58$^{\circ}=$1.6). The angle of refraction of the transmitted beam and the refractive index of the glass are :
If the critical angle of a crystal is $45^{\circ}$, the polarizing angle is :
When an unpolarized light of intensity ${I} _{0}$ is incident on a polarizing sheet, the intensity of the light which does not get transmitted is:
When the angle of incidence on a material is ${60}^{o}$, the reflected light is completely polarised. The velocity of the refracted ray inside the material is
When unpolarised light beam is incident from air onto glass $(n=1.5)$ at the polarising angle.
The solar glare of sunlight bouncing off water or snow can be a real problem for drivers. The reflecting sunlight is horizontally polarized, meaning that the light waves oscillate at an angle of $90^o$ to a normal line drawn perpendicular to the Earth. At what angle relative to this normal line should sunglasses be polarized if they are to be effective against solar glare?
Polarising angle for water is ${ 53 }^{ o }{ 4 }^{ \prime }$. If light is incident at this angle on water and reflected, the angle of refraction is :
A plane polarized light passed through successive polarizers which are rotated by $30^{\circ}$ with respect to each other in the clockwise direction. Neglecting absorption by the polarizers and given that the first polarizer's axis is parallel to the plane of polarization of the incident light, the intensity of light at the exit of the fifth polarizer is closest to.
The refractive index of the medium, for the polarising angle $60^o$ is?