For the photoelectric effect, indicate the expected observations for a particle theory of light and for a wave theory of light.
1. If light intensity is increased, the number of electrons ejected should increase, but the maximum kinetic energy of the electrons ejected should not increase.
2. If the frequency of the light is increased, the maximum kinetic energy of the electron should not be affected.
3. If the frequency of the light is increased, the maximum kinetic energy of the electrons should increase.
4. If the light intensity is increased, the number of electrons ejected should increase and the maximum kinetic energy of the electrons ejected should increase.
5. There should be no lower limit to the frequency - electrons will be ejected for all frequencies.
6. There is a "cutoff" frequency, below which no electrons will be ejected, no matter how intense the light.

Question

08-12-2022
Physics

Answered

For the photoelectric effect, indicate the expected observations for a particle theory of light and for a wave theory of light.
1. If light intensity is increased, the number of electrons ejected should increase, but the maximum kinetic energy of the electrons ejected should not increase.
2. If the frequency of the light is increased, the maximum kinetic energy of the electron should not be affected.
3. If the frequency of the light is increased, the maximum kinetic energy of the electrons should increase.
4. If the light intensity is increased, the number of electrons ejected should increase and the maximum kinetic energy of the electrons ejected should increase.
5. There should be no lower limit to the frequency - electrons will be ejected for all frequencies.
6. There is a "cutoff" frequency, below which no electrons will be ejected, no matter how intense the light.

Answer :

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zaibfatimarizvi zaibfatimarizvi · Answer 1 · 2022-12-18T22:27:52-05:00

For the photoelectric effect, the expected observations for a particle theory of light are 1,3, and 6 and 2,4,5 for a wave theory of light.

The particle theory of light defines that light consists of minute particles. Light consists streams of small particles known as photons and travels in straight lines at great speeds which is reflected from mirrors in a predictable way. Wave theory of light suggests that light has a wave character and that it travels in a medium called ether as a longitudinal wave and undergoes diffraction and interference. The wave-particle duality theory states that waves can exhibit particle-like properties while particles can exhibit wave-like properties. Hence, based on the basic definition, the statement 1, 3, and 6 respond to particle theory of light and statements 2,4, and 5 respond to wave theory of light.

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