7.Which among the following play role in the formation of Rainbow? 1. Dispersion 2. Total Internal Reflection 3. Refraction Select the correct option from the codes given below: [A] Only 1 & 2 [B] Only 2 & 3 [C] Only 1 & 3 [D] 1, 2 & 3 Show Answer
Rainbows are formed by the dispersion of light & reflection (not total internal reflection) from drops of water.
Each raindrop is a sphere and it scatters light over an entire circular disc in the sky. As amount of scattering is dependent on wavelength, it plays a role in the formation of a rainbow.
