Electrons originally at rest are accelerated through a potential difference of V volts. The applied
Channel: Doubtnut
Date: 2020-02-20

Electrons originally at rest are accelerated through a potential difference of V volts. The applied potential differ- ence is measured using a voltmeter having a least count of DV. The electrons in the beam have a de-Broglie wavelength of `lambda +- Deltalambda [Deltalambda ltlt]`. Find `|(Deltalambda)/(lambda)|`.