Optics Question 747
Question: Ray optics is valid, when characteristic dimensions are
[CBSE PMT 1994; CPMT 2001]
Options:
A) Of the same order as the wavelength of light
B) Much smaller than the wavelength of light
C) Of the order of one millimetre
D) Much larger than the wavelength of light
Show Answer
Answer:
Correct Answer: D
Solution:
Ray optics is valid when size of the objects is much larger than the order of wavelength of light.
