Concept explainers
(a)
Potential difference for a proton.
(a)
Answer to Problem 72GP
Explanation of Solution
Given:
Mass is
Wavelength is
Formula used:
Each absorbed photon’s momentum changes form
Where,
It is known that kinetic energy:
Where,
It is known that potential difference:
Where,
Calculation:
The required momentum is
For the proton,
The potential difference to produce this kinetic energy is
(b)
Potential difference for an electron.
(b)
Answer to Problem 72GP
Explanation of Solution
Given:
Mass is
Wavelength is
Formula used:
It is known that kinetic energy:
Where,
It is known that potential difference:
Where,
Calculation:
For the electron,
Thus, calculate the required kinetic energy from
The potential difference to produce this kinetic energy is
Chapter 27 Solutions
Physics: Principles with Applications
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