Q148 / 180 · KCET 2014 · Physics
The maximum kinetic energy of the photo-electrons depends only on
- Apotential
- Correct answerBfrequency
- Cincident angle
- Dpressure
Solution
When light of suitable frequency falls on metal plate electrons are emitted. This effect is called photoelectric effect.
The maximum kinetic energy of the photo electrons depends only on frequency of the incident light. The relation is given
as
\[ K_{\max }=h f=h f_{0} \]
where \( f_{0} \) is threshold frequency; \( \mathrm{f} \) is frequency of incident light.
The maximum kinetic energy of the photo electrons depends only on frequency of the incident light. The relation is given
as
\[ K_{\max }=h f=h f_{0} \]
where \( f_{0} \) is threshold frequency; \( \mathrm{f} \) is frequency of incident light.
Hence, the correct answer is option: 'B'.