MCQ
Two particles move at right angle to each other. Their de Broglie wavelengths are ${\lambda _1}$ and ${\lambda _2}$ respectively. The particles suffere perfectly inelastic collision. The de Broglie wavelength $\lambda $ , of the final particle, is given by
- A$\lambda = \sqrt {{\lambda _1}{\lambda _2}} $
- B$\lambda = \frac{{{\lambda _1} + {\lambda _2}}}{2}$
- C$\frac{2}{\lambda } = \frac{1}{{{\lambda _1}}} + \frac{1}{{{\lambda _2}}}$
- ✓$\frac{1}{{{\lambda ^2}}} = \frac{1}{{\lambda _1^2}} + \frac{1}{{\lambda _2^2}}$
