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How the kinetic energy of ejected electr...

How the kinetic energy of ejected electrons depends on the intensity of light ?

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The kinetic energy of the photoelectrons depends upon the

Does the kinetic energy of photoelectrons depend on the intensity of incident radiations?

How does kinetic energy of ejected photoelectrons depend upon the frequency of incident radiation?

How does kinetic energy of electrons change when we increase the intensity of light?

Assertion : The increase in intensity of incidence light decreases the kinetic energy of emitted electrons. Reason : When frequency of light increases , the intensity of light increases.

The maximum kinetic energy of the photoelectrons depends only on

The kinetic energy of the ejected electrons in photoelectric effect is

A technique called photelectron spectroscopy is used to measure the I.P of atoms. A same is irradiated with U.V light, and electrons are ejected from the valence shell. The kinetic energy of the ejected electrons are measured. Since, the energy of the U.V. photon and the kinetic energy of the ejected electrons are known, we can write hv = I.P. + (1)/(2) m u^(2) Where v is the frequency of the U.V light, and m and u are mass and velocity of the electron respectively. In one experiment the kinetic energy of the ejected electron from potassium is found to be. 5.34 xx 10^(-19) J using U.V. source of wavelength 162 nm. Calculate I.E. of potassium (h = 6.62 xx 10^(-34) J-s, c= 3 xx 10^(8) m " / " s) .