A photon with wavelength 002680 nm strikes a free electron, Ask an Expert

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A photon with wavelength 0.02680 nm strikes a free electron that is initially at rest. The photon is scattered at an angle of 30.0° from its original direction.

a) What is the energy of the scattered photon?

b) What is the de Broglie wavelength of the electron after its collision with the photon?

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