The radiation corresponding to 3 … 2 transition of a hydrogen atom falls on a gold surface to generate photoelectrons. The electrons are passed through a magnetic field of 5 … 10^…4 T. Assume that the radius of the largest circular path followed by these electrons is 7 mm, the work function of the metal is : (Mass of electron = 9.1 … 10^…31 kg)

Option C. Energy of photon can be given as

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Dual Nature of Radiation

JEE Main 2021 · 20 Jul, Morning shift · Q6639

PhysicsHard145×since 2002Q6639

The radiation corresponding to 3

\to

2 transition of a hydrogen atom falls on a gold surface to generate photoelectrons. The electrons are passed through a magnetic field of 5

\times

10^

-

4 T. Assume that the radius of the largest circular path followed by these electrons is 7 mm, the work function of the metal is : (Mass of electron = 9.1

\times

10^

-

31 kg)

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