Question

An electron moves under a potential difference of 300 V 

1. The wave associated with electron is called……….

2. Derive an expression for its wave in terms of charge of particle.

3. Calculate the wavelength of above electron.

Answer 1

1. matter wave

2. λ =  \(\frac{h}{p}=\frac{h}{\sqrt{2meV}}\) = \(\frac{h}{\sqrt{2mqV}}\)

3.  λ = \(\sqrt{\frac{150}{V}}A^0=\sqrt{\frac{150}{300}}=0.707A^0\)