Light of wavelength 2475 Å is incident on barium. Photoelectrons emitted describe a circle of radius 100 cm by a magnetic field of flux density Tesla. Work function of the barium is (Given
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answer is 3.
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Detailed Solution
Radius of circular path described by a charged particle in a magnetic field is given by ;where K = Kinetic energy of electron By using E = W0 + Kmax