Question
Physics Question on Ray optics and optical instruments
The INCORRECT statement is
A
Optical density is the ratio of speed of light in two media.
B
Hotter air is less dense than the cooler air.
C
Cooler air has higher refractive index than the hotter air.
D
The refractive index of air decreases with its density.
E
Optical density of air increases with height of air layer.
Answer
The refractive index of air decreases with its density.
Explanation
Solution
The correct option is (D) : The refractive index of air decreases with its density.