JEE Main & Advanced
Physics
Photo Electric Effect, X- Rays & Matter Waves
Question Bank
Numerical Value Type Questions - Dual Nature of Radiation and Matter
question_answer
In a Frank - Hertz experiment, an electron of energy 5.6 eV passes through mercury vapour and emerges with an energy 0.7 eV. The minimum wavelength (in nm) of photons emitted by mercury atoms is