Photoelectric effect supports the quantum nature of light because

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

the maximum KE of photoelectrons depends only on the frequency of light and not on its intensity

even when the metal surface is faintly illuminated by light of wavelength less than the threshold wavelength, the photoelectrons leave the surface immediately

there is a minimum frequency of light below which no photoelectrons are emitted

electric charge of photoelectrons is quantized

answer is A, B, C.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

According to wave theory ,photo electric emission should take place at any wavelength . But practically photo emission takes place even when intensity is low and wavelength of incident light is less than a certain minimum wavelength .

Absence of any time lag between the impingement of incident photons and emission of photoelectrons supports the quantum nature of light .

According to wave theory , maximum kinetic energy should depend on the intensity of incident light , but practically maximum kinetic energy is independent of intensity of incident light , it depends only on the frequency of incident light .

Watch 3-min video & get full concept clarity