Question

If a certain metal is irradiated by using two different light radiation of frequency X,4X.The kinetic energy of ejected of electrons Y and 6Y respectively.The threshold frequency of metal will be

Answer 1

Answer:

If a certain metal was irradiated by using two different light radiations of frequency x and 2x, the kinetic energies of the ejected electrons are y and 3y, respectively. The threshold frequency of the metal will be

Explanation:

K.E = hμ−hμ0

hx−hμ0=y - (i)

h.2x - hμ = 3y (ii)

hμ0 will be same as it is work function and it is a property of a metal.

divide (i) and (ii)

h(x−μ0)h(2x−μ)=y3y

3x−3μ0=2x−μ0

x=2μ0

μ0=x2

Answer 2

here's the answer and hope this helps you.