Question 14

MATRIX MATCHMEDIUM

In the List-I, four optical effects are mentioned. The physical phenomena of light which are essential to describe these optical effects are given in List-II. Choose the option which describes the correct match between the entries in List-I to those in List-II.

List - I

Colorful sky in north polar region (Aurora Borealis)

Partially polarized sun light

Rainbow

Dark and bright fringes

List-II

Dispersion and reflection

Total internal reflection

Diffraction

Scattering of light by molecules in the atmosphere

Emission of radiation from oxygen and nitrogen atoms excited by charged particles

(A)

P-5, Q-4, R-1, S-3

(B)

P-4, Q-2, R-1, S-3

(C)

P-4, Q-1, R-2, S-3

(D)

P-5, Q-4, R-1, S-2

Detailed Solution

P matches 5: Aurora Borealis is caused by the emission of light from oxygen and nitrogen atoms in the upper atmosphere when they are excited by charged particles (solar wind).

Q matches 4: Sun light becomes partially polarized due to scattering by air molecules in the atmosphere (Rayleigh scattering).

R matches 1: A rainbow is primarily described by the dispersion of light as it refracts into and out of water droplets, combined with internal reflection.

S matches 3: Dark and bright fringes are a characteristic result of interference or diffraction patterns.

Therefore, the correct matching is P $\rightarrow$ 5, Q $\rightarrow$ 4, R $\rightarrow$ 1, S $\rightarrow$ 3.

Correct Option: A

Question 14

List - I

List-II

Detailed Solution

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