A particle is dropped from a height H. The de Broglie wavelength of the particle as a function of height is proportional to
When the particle is dropped from height H,
Velocity 
De Broglie wavelength, 
∴
1
A particle is dropped from a height H. The de Broglie wavelength of the particle as a function of height is proportional to
When the particle is dropped from height H,
Velocity
De Broglie wavelength,
∴