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प्रश्न
Which expression gives the maximum kinetic energy of emitted photoelectrons?
पर्याय
\[K_{\max}=h\nu+\phi_0\]
\[K_{\max}=h\nu-\phi_0\]
\[K_{\max}=\phi_0-h\nu\]
\[K_{\max}=h\nu\phi_0\]
MCQ
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उत्तर
The maximum kinetic energy is \[K_{\max}=h\nu-\phi_0\]. It is the photon energy remaining after the electron is removed from the surface.
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