Which of the following statements is true for hydrogen atom ?

Angular momentum, $L=mvr=\frac{nh}{2\pi } or mv=\frac{nh}{2\pi r}$

$\Rightarrow L \propto n$

Now, Radius:    $r\propto n^2$

Linear Momentum:

$\therefore mv=p\propto \frac{nh}{2\pi \times n^2}$               $\left[\because p=mv= \frac{nh}{2\pi r}\right]$

$\Rightarrow p\propto \frac{1}{n}$

Energy, $E\propto \frac{1}{n^2}$