A Certain Photon, After Being Scattered from a Free Electron $120 ^ { \circ }$

question 153

Multiple Choice

A certain photon, after being scattered from a free electron that was at rest, moves at an angle of $120 ^ { \circ }$ with respect to the incident direction. If the wavelength of the incident photon is $0.6110 \mathrm {~nm}$ , what is the kinetic energy of the recoiling electron? $\left( m _ { \text {electron } } = 9.11 \times 10 ^ { - 31 } \mathrm {~kg} , c = 3.00 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } \right.$ , $\left. h = 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s } \right)$

• A) \(1.9 \times 10 ^ { - 18 } \mathrm {~J}\)
• B) \(4.3 \times 10 ^ { - 18 } \mathrm {~J}\)
• C) \(3.1 \times 10 ^ { - 18 } \mathrm {~J}\)
• D) \(1.5 \times 10 ^ { - 18 } \mathrm {~J}\)
• E) \(5.2 \times 10 ^ { - 18 } \mathrm {~J}\)

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Definitions:

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Modern Discrimination

Present-day biases or prejudices against individuals or groups, which can be subtle and systemic rather than overt.

Situational Prejudice

Bias or discrimination that is triggered by specific situations or contexts, rather than being a constant attribute of an individual.

Authoritarian Personality

A type of personality characterized by a strong adherence to authority, compliance to established norms, and submission to authority figures.