KCET · Physics · Dual Nature of Matter
The maximum kinetic energy of emitted photoelectrons depends on
- A Intensity of incident radiation
- B Frequency of incident radiation
- C Speed of incident radiation
- D Number of photons in the incident radiation
Answer & Solution
Correct Answer
(B) Frequency of incident radiation
Step-by-step Solution
Detailed explanation
In photoelectric effect, the maximum kinetic energy of emitted photoelectrons depends on the frequency of incident
radiation. We have
\(K E=h v-\phi\)
Where \(\phi\) is work function, which is the minimum energy required to remove electrons from the metal plate; \(f\) is frequency
of incident radiation; h is Planck's constant.
Therefore, \((K E)_{\max } \propto f\).
radiation. We have
\(K E=h v-\phi\)
Where \(\phi\) is work function, which is the minimum energy required to remove electrons from the metal plate; \(f\) is frequency
of incident radiation; h is Planck's constant.
Therefore, \((K E)_{\max } \propto f\).
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