College Physics
College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
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Chapter 27, Problem 1RQ
To determine

The explanation of Planck’s hypothesis that agrees with the classical explanation that objects emit light through the accelerated motion of electrically charged particles.

Expert Solution & Answer
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Answer to Problem 1RQ

Solution:

An accelerated charged particle emits electromagnetic radiation and its energy is quantized.

Explanation of Solution

Introduction:

Planck’s hypothesis stated that an accelerated charged particle can radiate an electromagnetic wave. They radiate energy only in a discrete portion called the quanta.

Explanation:

According to Planck, accelerated charged particles are responsible for electromagnetic radiation. However, they could radiate energy only in a discrete portion called the quanta. Each quantum of emitted energy was equal to the multiple of some fundamental portion of energy. According to Planck, instead of frequency quantization (classical concept), it is the energy of the oscillator that was quantized. Mathematically:

E=hf

Here, h is Planck’s constant and f is the frequency.

Conclusion:

Planck’s hypothesis suggested that the energy of the electromagnetic radiation of the oscillator is quantized, rather than the frequency.

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Chapter 27 Solutions

College Physics

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