Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The wavelength of electrons accelerated from rest through a potential difference of 40kV is
. The value of x is ___ (Nearest integer)
Given : Mass of electron 
Charge on an electron 
Planck's constant 
Text Solution
Verified by ExpertsThe correct answer is:
6
(6)
De-broglie-wave length of electron:





Nearest integer = 6
OR


Ans. is 6
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Given below are two statements :
Statement-I: Two photons having equal linear momenta have equal wa…
According to Bohr's atomic theory :
The plots of radial distribution functions for various orbitals of hydrogen atom against 'r' are gi…
The orbital having two radial as well as two angular nodes is
Arrange the following metal complex/ compounds in the increasing order of spin only magnetic momenP…
What is the spin-only magnetic moment value of a divalent metal ion with atomic number , in it'sa…