CUET · PHYSICS · PYQ PAPER 2023
According to Einstein's photoelectric equation :
- A \(K_{\max }=h \nu-\phi_0\)
- B \(h \nu=K_{\max }-\phi_0\)
- C \(K_{\max }=h \nu+\phi_0\)
- D \(\phi_0=K_{\max }+h \nu\)
Answer & Solution
Correct Answer
(A) \(K_{\max }=h \nu-\phi_0\)
Step-by-step Solution
Detailed explanation
According to the principle of conservation of energy, the total energy of an incident photon ( \(h v\) ) is spent in two ways: overcoming the metal's work function ( \(\phi_0\) ) to eject an electron, and providing the remaining energy as maximum kinetic energy…
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