Photoelectric EffectMedium
Question
Photoelectric effect takes place element A. Its work function is 0.25 eV and threshold wavelength is λ . An other element B is having work function of 5 eV. Then find out the wavelength can produce photoelectric effect in B.
Options
A.λ / 2
B.2λ
C.λ
D.8λ
More Photoelectric Effect Questions
When a photon of life collides with a metal surface number of electrons, (if any) coming out is...When the energy of the incident radiation is increased by 20%, the kinetic energy of the photoelectrons emitted from a m...The graph shows variation of stopping potential $V_{o}$ with the frequency $v$ of the incident radiation for three photo...Wavelength of emitted light from a monochromatic source is 6000 then energy of photon is :-...A radio transmitter operates at a frequency of 880 kHz and power of 10 kW. The number of photons emitted per sec. is :...