Question

Name the phenomenon associated with the following:

(i) The sky appear blue.

(ii) Formation of a rainbow in the sky.

(iii) Twinkling of stars.

Answer 1

(i) (a) Atmospheric refraction

(b) Scattering of light 

(ii) (a) Dispersion 

(b) Refraction 

(c) Total internal reflection 

(iii) (a) Atmospheric refraction 

(b) Change in the density of the atmosphere due to temperature and other conditions.