Q61
If there is no Sun, the colour of the sky would be ________
A.
Orange
B.
Blue
C.
Yellow
D.
Black
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
The sky appears blue because the sunlight is scattered by the gas molecules in the atmosphere - a phenomenon known as Rayleigh scattering - named after the discoverer - a British physicist who also discovered Argon - Lord Rayleigh (1842-1919). So, if there was no atmosphere, the sky would appear black.