The wavelengths of electron waves in two orbits is 3: 5 . The ratio of kinetic energy of electrons will be

Step-by-step solution

From de-Broglie's equation = h m v aligned & ^2 & = h^2 m^2 v^2 & m v^2 & = h^2 m ^2 aligned aligned & & KE (K) & = 1 2 m v^2 & & KE (K) & = 1 2 h^2 m ^2 & & K₁ K₂ & = ( ₂ ₁ )^2= ( 5 3 )^2 & & K₁ & : K₂=25: 9 aligned