Question
Physics Question on Ray optics and optical instruments
Ray optics is valid, when characteristic dimensions are
A
much smaller than the wavelength of light
B
of the same order as the wavelength of light
C
of the order of one millimetre
D
much larger than the wavelength of light.
Answer
much larger than the wavelength of light.
Explanation
Solution
Answer (d) much larger than the wavelength of light.