The energy of exactly one photon of this microwave radiation is about 1.58 × 10⁻²⁴ J
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Further explanation
The term of package of electromagnetic wave radiation energy was first introduced by Max Planck. He termed it with photons with the magnitude is :
[tex]\large {\boxed {E = h \times f}}[/tex]
E = Energi of A Photon ( Joule )
h = Planck's Constant ( 6.63 × 10⁻³⁴ Js )
f = Frequency of Eletromagnetic Wave ( Hz )
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The photoelectric effect is an effect in which electrons are released from the metal surface when illuminated by electromagnetic waves with large enough of radiation energy.
[tex]\large {\boxed {E = \frac{1}{2}mv^2 + \Phi}}[/tex]
[tex]\large {\boxed {E = qV + \Phi}}[/tex]
E = Energi of A Photon ( Joule )
m = Mass of an Electron ( kg )
v = Electron Release Speed ( m/s )
Ф = Work Function of Metal ( Joule )
q = Charge of an Electron ( Coulomb )
V = Stopping Potential ( Volt )
Let us now tackle the problem !
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Given:
c = 3 × 10⁸ m/s
h = 6.63 × 10⁻³⁴ Js
λ = 12.6 cm = 0.126 m
Unknown:
E = ?
Solution:
[tex]E = h \times f[/tex]
[tex]E = h \times \frac{c}{\lambda}[/tex]
[tex]E = (6.63 \times 10^{-34}) \times \frac{3 \times 10^8}{0.126}[/tex]
[tex]E = 1.58 \times 10^{-24} \texttt{ J}[/tex]
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Learn more
- Photoelectric Effect : https://brainly.com/question/1408276
- Statements about the Photoelectric Effect : https://brainly.com/question/9260704
- Rutherford model and Photoelecric Effect : https://brainly.com/question/1458544
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Answer details
Grade: College
Subject: Physics
Chapter: Quantum Physics
