In the Davisson and Germer experiment,the vel | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In the Davisson and Germer experiment,the electron gun accelerates electrons using an electric potential $V$. The kinetic energy $K$ gained by an

Vedclass · Accepted Answer

increasing the potential difference between the anode and filament

Vedclass · Answer

(A) In the Davisson and Germer experiment,the electron gun accelerates electrons using an electric potential $V$. The kinetic energy $K$ gained by an electron of charge $e$ and mass $m$ is given by $K = eV = \frac{1}{2}mv^2$. Solving for velocity $v$,we get $v = \sqrt{\frac{2eV}{m}}$. From this relation,it is clear that the velocity $v$ is directly proportional to the square root of the accelerating potential difference $V$. Therefore,the velocity of the electrons can be increased by increasing the potential difference between the anode and the filament.

In the Davisson and Germer experiment,the velocity of electrons emitted from the electron gun can be increased by

Similar Questions

$A$ sodium atom is in one of the states labeled 'Lowest excited levels'. It remains in that state for an average time of $10^{-8} \, s$,before it makes a transition back to a ground state. What is the uncertainty in energy of that excited state?

In the Davisson-Germer experiment,for which value of accelerating voltage was the intensity of the electron beam found to be maximum (in $V$)?

State Heisenberg's uncertainty principle.

What is a wave packet? Explain using a necessary diagram.

Consider two separate ideal gases of electrons and protons having the same number of particles. The temperature of both gases is the same. The ratio of the uncertainty in determining the position of an electron to that of a proton is proportional to :-

Vedclass Test Series

Exam Paper Generator

Online Exam Module