question_answer 27)

  Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset? (a) Dispersion of light                                                     (b) Scattering of light (c) Total internal reflection of light                           (d) Reflection of light from the earth

Answer:

                  (B) The reddish appearance of the sun at sunrise or sunset is due to least scattering of red light. The red light have the maximum wavelength. The rays of light have 10 travel a larger part of the atmosphere.