List of top Physics Questions on Photoelectric Effect asked in AIPMT

Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited to the ground state irradiates a photosensitive material. The stopping potential is measured to be $3.57\, V.$ The threshold frequency of the material is

Photoelectric emission occurs only when the incident light has more than a certain minimum

Monochromatic light of wavelength $667\, nm$ is produced by a helium neon laser. The power emitted is $9\, mW.$ The number of photons arriving per sec. on the average at a target irradiated by this beam is

The work functions for metals A, B and C are respectively 1.92 eV, 2.0 eV and 5 eV. According to Einstein's equation the metals which will emit photoelectrons for a radiation of wavelength 4100 $\mathring{A} $ is/are

Photoelectric work function of a metal is 1 eV. Light of wavelength $? = 3000\, \mathring{A}$ falls on it. The photo electrons come out with a maximum velocity

The threshold frequency for photoelectric effect on sodium corresponds to a wavelength of $5000\, \mathring{A}.$ Its work function is

The energy of a photon of wavelength $?$ is