Question

When electromagnetic radiation of wavelength
3500 Å falls on a metal surface, electrons are
emitted with a kinetic energy of 1.91 x 10 J mol-!
The threshold frequency to remove an electron will
be x x 10145-1. The value of x is​

Answer 1

Answer:

When electromagnetic radiation of wavelength 300 nm falls on the surface of sodium, electrons are emitted with kinetic energy of

. What is the minimum energy needed to remove an electron from sodium ? What is the maximum wavelength that will cause a photoelectron to be emitted.