MCQ
The de-Broglie wavelength is proportional to
- A$\lambda \propto \frac{1}{\nu }$
- B$\lambda \propto \frac{1}{m}$
- ✓$\lambda \propto \frac{1}{p}$
- D$\lambda \propto p$
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$\rho (r)\, = \,{\rho _0}\left( {1 - \frac{r}{R}} \right)$ for $r < R$
$\rho (r)\,=\,0$ for $r\, \ge \,R$
Where $r$ is the distance from the centre of the charge distribution $\rho _0$ is a constant. The electric field at an internal point $(r < R)$ is
