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Light of wavelength 180nm ejects photoelectrons from a plate of metal whose work function is 2eV.If a uniform magnetic field of 5/100000 tesla be applied parallel to the plate, the radius of path followed by elesctrons ejected normally from the plate with maximum energy would be

Light of wavelength 180nm ejects photoelectrons from a plate of metal whose work function is 2eV.If a uniform magnetic field of 5/100000 tesla be applied parallel to the plate, the radius of path followed by elesctrons ejected normally from the plate with maximum energy would be

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1 Answers

Chetan Mandayam Nayakar
312 Points
10 years ago

highest energy of photoelectrons=(hc/180nm)-3.2*10-19=E, v=√(2E/m), mv2/r=evB, solve for 'v'

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