Q. Ray optics is valid, when characteristic dimensions are
A) Of the same order as the wavelength of light
B) Much smaller than the wavelength of light
C) Of the order of one millimeter
D) Much larger than the wavelength of light
Explanation
(d) Ray optics is valid when size of the objects is much larger than the order of wavelength of light
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.