Dual Nature of Matter and Radiation: JEE Main 2021 Physics question

JEE Main 2021 · 25 Jul, Evening shift · Q6640

JEE Main 202125 Jul, Evening shiftPhysicsMediumDual Nature of Matter and Radiation146× since 2002

When radiation of wavelength

\lambda

is incident on a metallic surface, the stopping potential of ejected photoelectrons is 4.8 V. If the same surface is illuminated by radiation of double the previous wavelength, then the stopping potential becomes 1.6 V. The threshold wavelength of the metal is :

More on Dual Nature of Matter and Radiation

Practise this topic

JEE Main 2021 Dual Nature of Matter and Radiation Question with Solution (25 Jul Evening shift, Q6640) | JEE Arc