a. Calculate the number of photoelectrons per second ejected from a 1.25 mm2 area of sodium...

a. Calculate the number of photoelectrons per second ejected from a 1.25 mm² area of sodium metal by 500 nm EM radiation having an intensity of 1.3 kW/m² (i.e. the intensity of sunlight above the Earth's atmosphere).

b. If the bonding energy is 2.28 eV, what power is carried away by the electrons?

Expert Solution

In the given problem

a) number of photoelectrons ejected per second can be find using below formula

b)power carried away by the electrons =

Here

a)number of photoelectrons per second,

b) power carried away by electrons, P=0.1346 mW (milli Watt).

genius_generous answered 2 years ago

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