Search any question & find its solution
Question:
Answered & Verified by Expert
In the Davisson and Germer experiment, the velocity of electron emitted from the electron gun can be increased by
Options:
Solution:
2990 Upvotes
Verified Answer
The correct answer is:
Increasing the potential difference between the anode and filament
- The velocity of an electron accelerated through a potential is given by
$V=\sqrt{\frac{2 e V_0}{m}}$
Where $e=$ Charge of electron and $V_0=$ potential, $m=$ mass of the particle
- From the above equation it is clear that
$\Rightarrow V \propto \mathrm{V}_0$
- The velocity of the electron is directly proportional to the square root of the potential difference between the anode and filament. Hence, option (2) is the answer
$V=\sqrt{\frac{2 e V_0}{m}}$
Where $e=$ Charge of electron and $V_0=$ potential, $m=$ mass of the particle
- From the above equation it is clear that
$\Rightarrow V \propto \mathrm{V}_0$
- The velocity of the electron is directly proportional to the square root of the potential difference between the anode and filament. Hence, option (2) is the answer
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.