24) A metal surface is irradiated with radiation of frequency 3.0 x 101“Hz. If the stopping potential is 0.8eV, the minimum frequency needed to eject an electron from that metal surface will be. A) 0.8 x 10''Hz (B) 2.0 x 10 Hz (C) 1.1 x 10'“Hz (D) 1.6 x 101“Hz

24) A metal surface is irradiated with radiation of frequency 3.0 x 101“Hz. If the stopping potential is 0.8eV, the minimum frequency needed to eject an electron from that metal surface will be. A) 0.8 x 10''Hz (B) 2.0 x 10 Hz (C) 1.1 x 10'“Hz (D) 1.6 x 101“Hz

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter6: Photons And Matter Waves

Section: Chapter Questions

Problem 71P: A 600-nm light falls on a photoelectric surface and electrons with the maximum kinetic energy of...

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24) A metal surface is irradiated with radiation of frequency 3.0 x 101“Hz. If the stopping potential is
0.8eV, the minimum frequency needed to eject an electron from that metal surface will be.
A) 0.8 x 10'Hz
(B) 2.0 x 10 Hz
(C) 1.1 x 10'“Hz
(D) 1.6 x 10“Hz

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