A beam of 450 nm light is incident on a metal having work function 2:0 eV and placed in a magnetic field B. The most energetic electrons emitted perpendicular to the field are bent in circular arcs of radius 20 cm. Find the value of B.

A beam of 450 nm light is incident on a metal having work function 2:0 eV and placed in a magnetic field B. The most energetic electrons emitted perpendicular to the field are bent in circular arcs of radius 20 cm. Find the value of B.

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter3: The Quantum Theroy Of Light

Section: Chapter Questions

Problem 17P

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Question

A beam of 450 nm light is incident on a metal having
work function 2.0 eV and placed in a magnetic field B.
The most energetic electrons emitted perpendicular to the
field are bent in circular arcs of radius 20 cm. Find the
value of B.
13.

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