JEE Mains · Physics · STD 12 - Dual nature of radiation and matter
- JEE Mains 2024
- Hard
- MCQ
For the photoelectric effect, the maximum kinetic energy \(\left(E_{\mathrm{k}}\right)\) of the photoelectrons is plotted against the frequency \((v)\) of the incident photons as shown in figure. The slope of the graph gives _______.
Pick an option to check your answer.
Answer & Solution
Correct Answer
(D) Planck's constant
Step-by-step Solution
Detailed explanation
\(\text { K.E. }=\mathrm{hf}-\phi\)
\(\tan \theta=\mathrm{h}\)
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