The work function of a substance is 3.0 eV. The longest wavelength of light that can cause the emission of photo electrons from this substance is approximately:

(1) 215 nm 

(2) 414 nm 

(3) 400 nm

(4) 200 nm

                                        JEE-2024

Solution:                
The work function of a substance is 3.0 eV. The longest wavelength of light that can cause the emission of photo electrons from this substance is approximately: (1) 215 nm (2) 414 nm (3) 400 nm (4) 200 nm JEE-2024

Bhautik Study is a branch of knowledge that offers comprehensive solutions to a wide range of questions, aiding in preparation for exams such as JEE, NEET, CUET and NDA.