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NEET · Physics · Wave Optics
Match List-I with List-II for an unpolarised light beam incident on...
Match List-I with List-II for an unpolarised light beam incident on a transparent medium at Brewster's angle ().
Choose the correct answer from the options given below:
| List-I | List-II |
|---|---|
| (A) Angle between reflected and refracted rays | (I) Partially polarised |
| (B) Refractive index of the medium | (II) |
| (C) Polarisation state of the reflected ray | (III) |
| (D) Polarisation state of the refracted ray | (IV) Completely polarised |
Choose the correct answer from the options given below:
Options
- A(A)-(II), (B)-(III), (C)-(IV), (D)-(I)
- B(A)-(II), (B)-(III), (C)-(I), (D)-(IV)
- C(A)-(III), (B)-(II), (C)-(IV), (D)-(I)
- D(A)-(II), (B)-(I), (C)-(IV), (D)-(III)
Correct answer
A. (A)-(II), (B)-(III), (C)-(IV), (D)-(I)
Step-by-step solution
According to Brewster's law, when unpolarised light is incident at the polarising angle (), the reflected and refracted rays are perpendicular to each other. Hence, the angle between them is .
The refractive index of the medium is given by .
At this angle of incidence, the reflected ray is completely plane-polarised, whereas the refracted ray is partially polarised.
Therefore, the correct matching is (A)-(II), (B)-(III), (C)-(IV), (D)-(I).
Answer: (A)-(II), (B)-(III), (C)-(IV), (D)-(I)
The refractive index of the medium is given by .
At this angle of incidence, the reflected ray is completely plane-polarised, whereas the refracted ray is partially polarised.
Therefore, the correct matching is (A)-(II), (B)-(III), (C)-(IV), (D)-(I).
Answer: (A)-(II), (B)-(III), (C)-(IV), (D)-(I)