Virtual Labs

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Aim

Theory

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Procedure

Simulation

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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

To determine Planck’s Constant and the work function using the photoelectric effect.

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Beginner

Intermediate

Advanced

What is Planck’s constant denoted by?

a: c Explanation

Explanation

b: e Explanation

Explanation

c: h Explanation

Explanation

d: μ₀ Explanation

Explanation

What phenomenon does the photoelectric effect refer to?

a: Emission of electrons from a metal when it is heated Explanation

Explanation

b: Emission of photons from a radioactive substance Explanation

Explanation

c: Emission of electrons from a metal when light is shone on it Explanation

Explanation

d: Absorption of heat by a conductor Explanation

Explanation

What is the stopping potential in a photoelectric experiment?

a: The potential difference needed to accelerate electrons Explanation

Explanation

b: The voltage required to stop the most energetic photoelectrons Explanation

Explanation

c: The potential that causes a metal to emit electrons Explanation

Explanation

d: The current applied to the metal Explanation

Explanation

What is the relationship between energy (E) and frequency (ν) of a photon?

a: E = c/ν Explanation

Explanation

b: E = hν Explanation

Explanation

c: E = eν Explanation

Explanation

d: E = ν/h Explanation

Explanation

What property of the light must be above a certain threshold to emit photoelectrons?

a: Intensity Explanation

Explanation

b: Frequency Explanation

Explanation

c: Wavelength Explanation

Explanation

d: Color Explanation

Explanation

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