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Modern Physics

Electron moves in the orbit as________________?

August 30, 2021March 21, 2019 by admin
Electron moves in the orbit as________________?

A. Simple vibratory motion
B. Standing wave motion
C. Vibratory motion like up and down
D. S.H.M likes the sound

Categories Modern Physics, Physics Mcqs

Compton effect proves the________________?

August 30, 2021March 21, 2019 by admin
Compton effect proves the________________?

A. Photon theory of light
B. Dual nature of light
C. Wave nature of light
D. Uncertain nature of light

Categories Modern Physics, Physics Mcqs

The energy radiated is directly proportional to the fourth power of Kelvins temperature is________________?

August 30, 2021March 21, 2019 by admin
The energy radiated is directly proportional to the fourth power of Kelvins temperature is________________?

A. Karl-Weins law
B. Rayleigh-Jeans law
C. Stephens law
D. Plancks

Categories Modern Physics, Physics Mcqs

For confinement of electron in a box of radius 10-14m the electron, speed should be_____________?

August 30, 2021March 21, 2019 by admin
For confinement of electron in a box of radius 10-14m the electron, speed should be_____________?

A. 107m/sec
B. Should be greater than the speed of light.
C. Be zero
D. Not be wave-like

Categories Modern Physics, Physics Mcqs

The uncertainty in momentum & position is due to its_____________?

August 30, 2021March 21, 2019 by admin
The uncertainty in momentum & position is due to its_____________?

A. Property of matter and radiation
B. Two-dimensional motion
C. Emission of the certain wavelength
D. Very high velocity

Categories Modern Physics, Physics Mcqs

A three-dimensional image is obtained by________________?

August 30, 2021March 21, 2019 by admin
A three-dimensional image is obtained by________________?

A. Electron microscope
B. Scanning electron microscope
C. Magnetic imaging
D. None of the above

Categories Modern Physics, Physics Mcqs

In the electron microscope, electric & magnetic fields are used as_______________?

August 30, 2021March 21, 2019 by admin
In the electron microscope, electric & magnetic fields are used as_______________?

A. Electromagnetic gun
B. Source of electromagnetic waves
C. Deflecting charged particle
D. Converging source of electrons

Categories Modern Physics, Physics Mcqs

In an electron microscope, we use energetic particles because of______________?

August 30, 2021March 21, 2019 by admin
In an electron microscope, we use energetic particles because of______________?

A. Penetrating power is high
B. Kinetic energy is large
C. Wavelength is very short
D. All the above reasons

Categories Modern Physics, Physics Mcqs

If a diffraction grating is placed in the path of a light beam it reveals______________?

August 30, 2021March 21, 2019 by admin
If a diffraction grating is placed in the path of a light beam it reveals______________?

A. Wave property
B. Particle property
C. Energy particle
D. Electromagnetic wave property

Categories Modern Physics, Physics Mcqs

In Davisson-Germer experiment the diffracted proton from crystal shows______________?

August 30, 2021March 21, 2019 by admin
In Davisson-Germer experiment the diffracted proton from crystal shows______________?

A. Particle property
B. Wave property
C. Light property
D. Quantum property

Categories Modern Physics, Physics Mcqs
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