Question

Which of the following processes play a part in the formation of a rainbow?
(i) Refraction
(ii) Total internal reflection
(iii) Dispersion
(iv) Interference

• A. (i), (ii) and (iii)
• B. (i) and (ii)
• C. (i),(ii)and(iv)
• D. (iii) and (iv)

Answer 1

Answer: (A)

Rainbow is formed due to the dispersion of light suffering refraction and total internal reflection $(TIR)$ in the droplets present in the atmosphere.