When photons incident on a metallic surface elec tric current is produced. The work function of a metal is given by [phi_0 = hc / lambda_0 = h(upsilon_0 )] ,where (lambda_0, c , h , upsilon_0)have their usual meaningThe graph given below shows the variation in stop ping potential with frequency upsilon of the incident cadiation of the materials A and B. : Which material is more photo sensitive?

When photons incident on a metallic surface elec tric current is produ

1.	When photons incident on a metallic surface elec tric current is produced. The work function of a metal is given by [phi_0 = hc / lambda_0 = h(upsilon_0 )] ,where (lambda_0, c , h , upsilon_0)have their usual meaningThe graph given below shows the variation in stop ping potential with frequency upsilon of the incident cadiation of the materials A and B. : Which material is more photo sensitive?
Answer» SOLUTION :The material having low WORK FUNCTION is more sen sitive to photo electric EFFECT. In this case B has low work function. Hence B is more sensitive for photo electric effect

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