Which of the following statements with regard to the phenomenon of the primary rainbow formation by water droplets is/are <strong>CORRECT</strong>?<br>1. It involves refraction and one internal reflection of sunlight.<br>2. It involves refraction of sunlight only.<br>3. It is formed as the inner bow.<br>4. It may involve more than one internal reflection as well as refraction of sunlight.<br>Select the answer using the code given below :

  1. A. 1 only
  2. B. 1 and 3
  3. C. 3 and 4
  4. D. 2 and 3

Correct Answer: B. 1 and 3

Explanation

A primary rainbow is formed by two refractions and one internal reflection of light within a water droplet, and it forms the brighter inner bow. Secondary rainbows involve two internal reflections.

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