In the figure below, will the kinetic energy of an emitted electron equal the en

Question

In the figure below, will the kinetic energy of an emitted electron equal the energy of the photon that causes its emission? Photon hits surface with energy h Electrons emitted from surface by energy of photon Metal surface The photoelectric effect Q Tap image to zoom The kinetic energy of an emitted electron will equal the energy of the photon that causes its emission. The kinetic energy of an emitted electron will be higher than the energy of the photon that causes its emission. The kinetic energy of an emitted electron will be lower than the energy of the photon that causes its emission

Explanation / Answer

in the first question

the energy of emitted electron will be lesser than the incident radiation . becuase kinetic energy of outgoing electron will be K.E = energy pf photon - work function (energy required to remove an electron from surface). So option 3 i scorrect.

In the second question option 3 is correct.

Because an electron can spin only either in clockwise diraction for which spin quantum numbre = +1/2 and for the anti clockwise rotation the value is -1/2.

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