KCET 2017 Physics Solved Paper

According to the de Broglie equation the wavelength of the particle is given as
λ=

h

mv

For a particle dropped from height H is given as
v=√2gH
λ=‌

h

m√gH×2

⇒λ∝

1

√H

Therefore, the de Broglie wavelength of particle depends on height as H−

1

2