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JEE Mains · Physics · STD 12 - 11. Dual nature of radiation and matter
In a photoelectric experiment, increasing the intensity of incident light :
- A increases the number of photons incident and also increases the \(K.E.\) of the ejected electrons
- B increases the frequency of photons incident and increases the \(K.E.\) of the ejected electrons
- C increases the frequency of photons incident and the \(K.E.\) of the ejected electrons remains unchanged
- D increases the number of photons incident and the \({KE}\). of the ejected electrons remains unchanged
Answer & Solution
Correct Answer
(D) increases the number of photons incident and the \({KE}\). of the ejected electrons remains unchanged
Step-by-step Solution
Detailed explanation
\(\rightarrow\) Increasing intensity means number of incident photons are increased. \(\rightarrow\) Kinetic energy of ejected electrons depend on the frequency of incident photons, not the intensity.
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