Get Answers to all your Questions

header-bg qa

For photoelectric emission from certain metal the cut-off frequency is v. If radiation of frequency 2v impinges on the metal plate, the maximum possible velocity of the emitted electron will be:

Answers (1)

\begin{array}{l} \frac{1}{2} m v_{\max }^{2}=h 2 v-h v \\ v_{\max }=\sqrt{\frac{2 h v}{m}} \end{array}

Posted by

Satyajeet Kumar

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE