CUET and UG exam CUET UG 2025 Mock Test Series Physics Dual Nature: Photon and Matter Waves The Photoelectric Effect
Light of wavelength 200 nm is incident on two metals A and B whose work functions are respectively 3eV and 5eV. Which of the metals will emit photoelectrons?
1
Only A
2
Only B
3
Both A and B
4
Neither A nor B