Photoelectric EffectHard
Question
A lamp is at a height of 4 m from a table. If the height is increased by 1 m, the illumination on the table will decrease by :
Options
A.20%
B.40%
C.64%
D.36%
More Photoelectric Effect Questions
The energy of a photon of frequency ν is E = hν and the momentum of a photon of wavelength λ is p = h/	...Hydrogen atom in ground state is excited by a monochromatic radiation of λ = 975. Number ofspectral lines in the re...When light is incident on surface, photo electrons are emitted. For photoelectrons :...Momentum of a particle is p and plank constnat is h, then associated wavelength will be :...This question has Statement - 1 and Statement - 2. Of the four choices given after the statements, choose the one that b...