Class 12PhysicsDual Nature of Radiation and matterPhotoelectric Effect by Lenard and it's Observations
EasyIn the photoelectric effect,electrons are ejected from metals if the incident light has a certain minimum:
- AWavelength
- BFrequency
- CAmplitude
- DAngle of incidence
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Similar Questions
The wave picture of light has failed to explain which of the following phenomena?
Photoelectric effect occurs when ultraviolet rays are incident on a metal plate. It does not occur when which of the following are incident?
Easy
View SolutionThe photoelectric threshold wavelength of a certain metal is $3000 \mathring{A}$. If the radiation of $2000 \mathring{A}$ is incident on the metal,then:
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View SolutionAssertion $(A) :-$ The photoelectrons produced by a monochromatic light beam incident on a metal surface have a spread in their kinetic energies.
Reason $(R) :-$ The work function of the metal varies as a function of depth from the surface.
Reason $(R) :-$ The work function of the metal varies as a function of depth from the surface.
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View SolutionDo all the electrons that absorb a photon come out as photoelectrons?
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