The number of photoelectrons emitted for light of a frequency $$\nu $$ (higher than the threshold frequency $${{\nu _0}}$$ ) is proportional to
A.
$$\nu - {\nu _0}$$
B.
threshold frequency $$\left( {{\nu _0}} \right)$$
C.
intensity of light
D.
frequency of light $$\left( \nu \right)$$
Answer :
intensity of light
Solution :
Independent of frequency $$\left( \nu \right)$$ of light, it only depends on the intensity of incident light. If intensity increases, number of photo electrons increases.
Releted MCQ Question on Modern Physics >> Dual Nature of Matter and Radiation
Releted Question 1
A particle of mass $$M$$ at rest decays into two particles of
masses $${m_1}$$ and $${m_2},$$ having non-zero velocities. The ratio of the de Broglie wavelengths of the particles, $$\frac{{{\lambda _1}}}{{{\lambda _2}}},$$ is
A proton has kinetic energy $$E = 100\,keV$$ which is equal to that of a photon. The wavelength of photon is $${\lambda _2}$$ and that of proton is $${\lambda _1}.$$ The ration of $$\frac{{{\lambda _2}}}{{{\lambda _1}}}$$ is proportional to