Optics Question 880
Question: On a hot summer night, the refractive index of air is smallest near the ground and increases with height from the ground. When a light beam is directed horizontally, the Huygens’ principle leads us to conclude that as it travels, the light beam :
Options:
A) bends downwards
B) bends upwards
C) becomes narrower
D) goes horizontally without any deflection
Show Answer
Answer:
Correct Answer: B
Solution:
[b] bends upwards
