Question

The wavelength of electron waves in two orbits is
3:5. The ratio of kinetic energy of electrons will be
(a) 25:9 (b)5:3 (0)9:25 (d) 3:5​

Answer 1

Answer:

Using de Broglie equation,

K. E. = h^2 / 2m lamda^2

K. E. Is inversely proportional to Lambda^2 ( wavelength).

So, Ratio of K. E. = 5^2 / 3^2 = 25 /9