Question

Question 53. The ejection of the photoelectron from the silver metal in the photoelectric effect experiment can be stopped by applying the voltage of 0.35 V when the radiation 256.7 nm is used. Calculate the work function for silver metal.​

Answer 1

Answer:

E = 4.48 eV

Explanation:

E(Energy)

h(planck constant)

v(frequency)

λ(lambda)

E = hv

E = h * c/ λ

E = (6.626 * 10^-34 * 3 * 10^8) / 256.7 * 10^-9

E = 7.74 * 10^9 joules

convert energy into electro volt(eV)

Charge = 1.602 * 10^-19

E = (7.74 * 10^-9)/(1.602 * 10^-19)

E = 4.83 eV

So work function = 4.83 - 0.35

= 4.48 eV

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