Concept explainers
Work function of the metal.
Answer to Problem 24P
Solution:
Work function of the metal is .
Explanation of Solution
Given:
Wavelength of the UV rays,
Maximum kinetic energy of the electron,
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
Calculation:
The maximum energy of the photon is calculated as
Plugging the values in the above equation
Since the kinetic energy of the electron is , so the work function of the metal is
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