Photoelectric Effect

Photoelectric Effect

University

6 Qs

quiz-placeholder

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Photoelectric Effect

Photoelectric Effect

Assessment

Quiz

Physics

University

Hard

Created by

Helen Johnson

Used 3+ times

FREE Resource

6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

minimum frequency that

the incident radiation must have in order to release electrons from the metal.

minimum

frequency.

threshold

frequency.

wave

frequency.

cut off frequency

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

longest wavelength for the

liberation of electrons from the surface of a metal

minimum wavelength

maximum wavelength

threshold wavelength

longest wavelength

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

A single electron requires

a minimum energy Φ to escape the surface of the metal. This is called.........................

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a photon arrives at the metal plate, it may be captured by an electron. The electron gains all of the

photon’s energy and the photon no longer exists. Some of the energy is needed for the electron to escape

from the energy well; the rest is the electron’s ........................................

potential energy

kinetic energy

elastic energy

strain energy

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Einstein’s photoelectric equation states that

Energy of a photon = ...................+ ........................ of electron

work function + PE

work function + KE

threshold frequency + KE

threshold wavelength + KE

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Photons of energies 1.0 eV, 2.0 eV and 3.0 eV strike a metal surface whose work function is 1.8 eV.

State which of these photons could cause the release of an electron from the metal.

1.0 eV and 2.0 eV

2.0 eV and 3.0 eV

1.0 eV and 3.0 eV

1.0 eV, 2.0 eV and 3.0 eV