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Consider a beam of electrons (each elect...

Consider a beam of electrons (each electron with energy `E_(0))` incident on a metal surface kept in an evacuated chamber. Then

A

no electrons will be emitted as only photons can emit electrons

B

electrons can be emitted but all with an energy `E_0`

C

electrons can be emitted with any energy , with a maximum of `E_0-phi` (is the work function)

D

electron can be emitted with any energy , with a maximum of `E_0`

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The correct Answer is:
D
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The electrons are emitted in a photoelectric effect from a metal surface

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In each of the following questions, a statement is given and a corresponding statement or reason is given just below it. In the statement, mark the correct answer as Statement-I: Though light of a single frequency (monochromic light) is incident ona metal, the energies of emitted photoelectrons are different Statement-II: The energy of electrons just after they absorb photons incident on the metal surface may be lost in collision with other atoms in the metal before the electron is ejected out of the metal.

In a photoelectric effect experiment , photons of energy 5 eV are incident on metal surface . They liberate electrons which are just stopped by an electrode at a potential of 3.5 V with respect to metal . The work function of the metal surface in eV is :

If we go on increasing the wavelength of light incident on a metal surface, what change in the number of electrons and the energy take place?

MTG GUIDE-DUAL NATURE OF MATTER AND RADIATION -CHECK YOUR NEET VITALS
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