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# The electrons in a television picture tube are typically ISBN: 9780201380279 40

## Solution for problem 5P Chapter A

An Introduction to Thermal Physics | 1st Edition

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Problem 5P

The electrons in a television picture tube are typically accelerated to an energy of 10,000 eV. Calculate the momentum of such an electron, and then use the de Broglie relation to calculate its wavelength.

Step-by-Step Solution:
Step 1<p>Since the electron is accelerated in 10000 eV, the kinetic energy of the electron will be 10000 eV. Now we will use the definition of the relativistic energy to calculate the momentum of the electron. Step 2<p>The relationship between the momentum and energy of a particle is given by (1)

So the kinetic energy of the electron will be (2)

Now we know that and and Hence from equation (2) we have (3)

Hence the momentum  of such electron is .

Step 2 of 2

##### ISBN: 9780201380279

This full solution covers the following key subjects: calculate, picture, accelerated, electron, electrons. This expansive textbook survival guide covers 10 chapters, and 454 solutions. Since the solution to 5P from A chapter was answered, more than 260 students have viewed the full step-by-step answer. The answer to “The electrons in a television picture tube are typically accelerated to an energy of 10,000 eV. Calculate the momentum of such an electron, and then use the de Broglie relation to calculate its wavelength.” is broken down into a number of easy to follow steps, and 34 words. The full step-by-step solution to problem: 5P from chapter: A was answered by , our top Physics solution expert on 07/05/17, 04:29AM. An Introduction to Thermal Physics was written by and is associated to the ISBN: 9780201380279. This textbook survival guide was created for the textbook: An Introduction to Thermal Physics , edition: 1.

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