Photoelectric EffectHard
Question
Light of wave length 4000
is incident on a sodium surface for which the threshold wave length of photoelectrons is 5420
. The work function of sodium is
Options
A.4.58 eV
B.2.29 eV
C.1.14 eV
D.0.57 eV
More Photoelectric Effect Questions
The velocity at which the mass of a particle becomes twice of its rest mass, will be -...Two small drops of mercury, each of radius R coalesece to form a single large energies before and after the change is :...A light wave described by $E = 60sin\left( 3 \times 10^{15} \right)t + sin\left( 12 \times 10^{15} \right)$ t] (in SI un...The thershold frequency for a photosensitive metal is 3.3 × 1014 . If light of frequency 8.2 × 1014 Hz is inci...The kinetic energy of most energetic electrons emitted from a metallic surface is doubled when the wavelength of the inc...