Back to DUAL NATURE OF RADIATION AND MATTER
NEET UG PHYSICS MCQ: DUAL NATURE OF RADIATION AND MATTER
1
Medium
1 of 1
Application
+4 | -1
What is additional KE that should be given to an electron to reduce de Broglie wavelength from 1 nm to 0.5 nm?
View answer and explanation
Correct option: D
Three times initial value
Option D (Three times initial value) is correct because the kinetic energy is inversely proportional to the square of the de Broglie wavelength.
More Questions from DUAL NATURE OF RADIATION AND MATTER
Practice All Chapter MCQs →
If the Broglie wavelengths associated with a proton and an - particle are equal, then the ratio of velocities of the proton and the - particle will be:
If the wavelength of incident light changes from 400 nm to 300 nm, the stopping potential for photoelectrons emitted from a surface becomes approximately
In photo-electric effect, when graph is plotted for stopping potential versus frequency of incident light, for different metals, then:
The radiation corresponding to transition of hydrogen atom falls on a metal surface to produce photoelectrons. These electrons are made to enter a magnetic field of If the radius of the largest circular path followed by these electrons is 10.0 mm, the work function of the metal is close to
The shortest wavelength of -rays emitted from an -ray tube depends on the
Planck’s constant has the dimensions of