Polarization MCQ - IIT JAM MCQ

The correct answer is: Ordinary light is symmetrical about its direction of propagation

Putting the given values, we get

= 1.47 x10^-3 cm
The correct answer is: 1.47 x10^-3 cm

The correct answer is: 0.857 μm

The velocity of the O-wave in the crystal is

= 1.81 x 10⁸  m/s
The velocity of the E-wave in the crystal normal to be optic axis is

= 2.02 x 10⁸ m/s
The correct answer is: = 2.02 x 10⁸ m/s

The correct answer is: 

The correct answer is: E is always parallel to the constant vector 

The correct answer is: The scattered light is plane polarized

The first law of thermodynamics can be given dQ = dU + dW
here dQ and dW both are path function and dU is state function.
For making dW a perfect differential, we take dQ = 0 So dU + dW = 0 dW = –dU and dQ = 0 occur in adiabatic process, so, dW0 is a perfect differential if the process is adiabatic.

For a negative uniaxial crystal like calcite ,μ_O > μ_e. Therefore, the path difference  between O and E-rays for calcite plate of thickness t is, Δ = ( μ_O- μ_e ) t and corresponding phase difference,

Here t= 0.00031 cm
For λ = 70684,

As the phase difference between O and E-rays is add multiple of π/2 therefore plane polarized beam is converted into elliptically polarized light in general and circularly polarized light, if the vibration in the incident plane polarised light makes an angle of 45° with the optic axis of plate.
The correct answer is: 3π/2

Refractive index of water = Speed of light in space/Speed of light in water

= 3/2.2

= 1.3636

Using Brewster’s Law, Angle of incidence = tan-1μ

= tan-11.3636

= 53.74.