Question

A photon is incident on an electron at rest. The scattered photon has a wavelength of $2.81 \mathrm{pm}$ and moves at an angle of $29.5^{\circ}$ with respect to the direction of the incident photon. (a) What is the wavelength of the incident photon? (b) What is the final kinetic energy of the electron?

Name: A photon is incident on an electron at rest. The scattered photon has a wavelength of 2.81 pm and moves at an angle of 29.5^∘ with respect to the direction of the incident photon. (a) What is the wavelength of the incident photon? (b) What is the final kinetic energy of the electron?
Uploaded: 2022-01-24T18:09:12-08:00
Duration: 1 min 16 s
Channel: Penny Riley
Description: A photon is incident on an electron at rest. The scattered photon has a wavelength of 2.81 pm and moves at an angle of 29.5^∘ with respect to the direction of the incident photon. (a) What is the wavelength of the incident photon? (b) What is the final kinetic energy of the electron?

          A photon is incident on an electron at rest. The scattered photon has a wavelength of $2.81 \mathrm{pm}$ and moves at an angle of $29.5^{\circ}$ with respect to the direction of the incident photon. (a) What is the wavelength of the incident photon? (b) What is the final kinetic energy of the electron?

Added by Suzanne Q.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Penny Riley

01/24/2022

Step 1

Given: λ' = 2.81 pm = 2.81 x 10^-12 m λ = unknown (to be found) M = mass of electron = 9.11 x 10^-31 kg c = speed of light = 3 x 10^8 m/s θ = 29.5 degrees Use the formula λ = λ' - λ / (M * c) * (1 - cos(θ)) Substitute the values: λ = 2.81 x 10^-12 - λ / (9.11 x Show more…

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A photon is incident on an electron at rest. The scattered photon has a wavelength of $2.81 \mathrm{pm}$ and moves at an angle of $29.5^{\circ}$ with respect to the direction of the incident photon. (a) What is the wavelength of the incident photon? (b) What is the final kinetic energy of the electron?