Concept explainers
Work function of the metal.
Answer to Problem 27P
Solution:
Work function of the metal is .
Explanation of Solution
Given:
Stopping voltage,
Formula used:
The maximum energy of the photon is calculated as
Here,
is the charge of electron
is the Planck’s constant
is the speed of light
is the wavelength
The kinetic energy of the electron is calculated as
Here,
is the voltage
Calculation:
The maximum energy of the photon is calculated as
Plugging the values in the above equation
The kinetic energy of the electron is calculated as
Plugging the values in the above equation
The work function of the metal is calculated as
Plugging the values in the above equation
Chapter 27 Solutions
Physics: Principles with Applications
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