JEE Main & Advanced
Chemistry
Structure of Atom / परमाणु संरचना
Question Bank
Mock Test - Atomic Structure
question_answer
The work function (\[\phi \]) of some metals is listed below. The number of metals which will show photoelectric effect when light of 300 nm wavelength falls on the metal is Metal Li Na K Mg Cu Ag Fe Pt W \[\phi \](eV) 2.4 2.3 2.2 3.7 4.8 4.3 4.7 6.3 4.75