An x ray with a wavelength of 0.100 nm collides with an

Chapter 38, Problem 38.17

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QUESTION:

An x ray with a wavelength of 0.100 nm collides with an electron that is initially at rest. The x rays final wavelength is 0.110 nm. What is the final kinetic energy of the electron?

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QUESTION:

An x ray with a wavelength of 0.100 nm collides with an electron that is initially at rest. The x rays final wavelength is 0.110 nm. What is the final kinetic energy of the electron?

ANSWER:


The final kinetic energy of the electron is equal to the energy gained by the x ray in the collision. The energy gained by the x ray is equal to the difference in the energy of the x ray before and after the collision.

The energy of the x ray with wavelength 0.100 nm is equal to the Planck constant (h) multiplied by the speed of

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