Question
de-Broglie wavelength associated with an electron accelerated through a potential difference V is X. What will be its wavelength when the accelerating potential is increased to 4 V?
Solution
De-Broglie wavelength assosciated with an electron is,
That is, wavelength is inversely proportional to the square -root of potential.
Thus,
When potential difference is increased 4 times,wavelength becomes half it's value.
That is, wavelength is inversely proportional to the square -root of potential.
Thus,
When potential difference is increased 4 times,wavelength becomes half it's value.
