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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 List-II (P) Colorful sky in north polar region (Aurora Borealis) (1) Dispersion and reflection (Q) Partially polarized sun light (2) Total internal ref

Options

  1. AP 5, Q 4, R 1, S 3
  2. BP 4, Q 2, R 1, S 3
  3. CP 4, Q 1, R 2, S 3
  4. DP 5, Q 4, R 1, S 2

Correct answer

A. P 5, Q 4, R 1, S 3

Step-by-step solution

The colorful sky in the north polar region, known as Aurora Borealis, is caused by the emission of radiation from oxygen and nitrogen atoms in the upper atmosphere when they are excited by charged particles from the solar wind. Thus, P 5. Sunlight scattered by molecules in the atmosphere becomes partially polarized in a direction perpendicular to the incident light. Thus, Q 4. A rainbow is formed due to the dispersion of sunlight and its internal reflection by water droplets in the atmosphere. Thus, R 1. Dark and b

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