For an electron, having kinetic energy E and moving at non relatvitic speeds `(V lt lt C)`, the de-Broglie wavelength is inversely proportional to

Options

A. E
B. `E^(1//2)`
C. `E^(-1//2)`
D. `E^(-2)`

Answer

B

Explanation

`lambda =h/sqrt(2mE)` i.e. `lambda prop 1/sqrt(E)`