Dual Nature of Radiation and Matter

Dual Nature of Radiation and Matter

These MCQs are intended for checking your Physics subject, Chapter Dual Nature of Radiation and Matter knowledge.

Millikan’s oil drop experiment makes use of:

X-rays are:

In Thomson’s experiment number of parabola gives :

The strength of photoelectric current depends upon :

Name the scientists who first studied the passage of electricity through fluids to establish the electrical nature of matter:

The strength of photoelectric current depends upon :

The work function of photoelectric material is 3.3 eV. The threshold frequency will be equal to:

Kinetic energy of emitted electrons depends upon :

Protons and alpha particles have the same de-Broglie wavelength. What is same for both of them ?

The momentum of an electron that emits a wavelength of 2 Å. will be:

De-Broglie equation states the:

Which of the following radiations cannot eject photo electrons?

In photo electric emission, for alkali metals the threshold frequency lies in the:

The ratio of specific charge of an alpha particle to the proton is:

What is the de-Broglie wavelength of an electron accelerated from rest through a potential difference of 100 volts?

When a yellow light is incident on a surface, no electrons are emitted while green light can emit electrons. If the red light is incident on the surface then:

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