Question

Which of the following figure represents the variation of particle momentum and the associated de Broglie wavelength,

• A.
• B.
• C.
• D.

Answer 1

Answer: (D)

De-Broglie wavelength of a particle is given as
$\lambda =\frac{h}{p}$ , where $h$ is called as the Planck's Constant and $p$ is momentum of particle.
$\Rightarrow \lambda p=h=\text{Constant}$
This means that graph between wavelength and momentum will be a rectangular hyperbola.