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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Photoelectrons are emitted when 400 nm radiation is incident on a surface of work function 1.9 eV. These photoelectrons pass through a region containing alpha particles. A maximum energy electron combines with an alpha particles to form a He ion, emitting

Photoelectrons are emitted when 400 nm radiation is incident on a surface of work function 1.9 eV. These photoelectrons pass through a region containing alpha particles. A maximum energy electron combines with an alpha particles to form a He ion, emitting

An electron in a hydrogen-like atom is in an excited state. It has a total energy of -3.4 eV. Calculate (a) the kinetic energy and (b) the de-Broglie wavelength of the electron.