Electron Emission and Work Function

JEE Main Physics · Dual Nature of Matter and Radiation · 5 questions, latest first

• Light is incident on a metallic plate having work function 110 × 10^-20 J. If the produced photoelectrons have zero kinetic…202622 January, Shift 2 · Q43
• The work function of a metal is 3 eV. The color of the visible light that is required to cause emission of photoelectrons is20253 April, Shift 1 · Q43
• The work function of a substance is 3.0 eV. The longest wavelength of light that can cause the emission of photoelectrons from…202430 January, Shift 1 · Q46
• The threshold frequency of a metal with work function 6.63 eV is:202427 January, Shift 2 · Q46
• The difference between threshold wavelengths for two metal surfaces A and B having work function φ_A=9 e V and φ_B=4.5 e V in nm…202313 April, Shift 1 · Q45