JEE Main & Advanced
Physics
Photo Electric Effect, X- Rays & Matter Waves
Question Bank
Self Evaluation Test - Dual Nature of Radiation and Matter
question_answer
In a photo-emissive cell, with exciting wavelength\[\lambda \], the maximum kinetic energy of electron is K. If the exciting wavelength is changed to \[3\lambda /4\] the kinetic energy of the fastest emitted electron will be