MCQ
A proton and an $\alpha-$particle are accelerated through a potential difference of $100 V.$ The ratio of the wavelength associated with the proton to that associated with an $\alpha-$particle is
- A$ \sqrt{2}: 1$
- B$2: 1$
- ✓$ 2 \sqrt{2}: 1$
- D$\frac{1}{2 \sqrt{2}}: 1$

