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Dual Nature of Radiation question

2020 · 9 Jan · Shift 1 · Q64
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Dual Nature of Radiation question

2020 · 9 Jan · Shift 1 · Q64

JEE MainPhysicsDual Nature of RadiationMCQ+4 / −1
Radiation, with wavelength 6561 Ao\mathop A\limits^oAo​ falls on a metal surface to produce photoelectrons. The electrons are made to enter a uniform magnetic field of 3 × 10–4 T. If the radius of the largest circular path followed by the electrons is 10 mm, the work function of the metal is close to :
  1. A
    1.8eV
  2. B
    0.8eV
  3. C
    1.1eV
  4. D
    1.6eV
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