Alpha-Particle Scattering Experiment NEET Questions

Physics - Atoms and Nuclei

Alpha-Particle Scattering Experiment MCQ Questions


7.
What was the main limitation of Rutherford’s model of the atom?
A.
It could not explain atomic spectra
B.
It could not explain atomic size
C.
It could not explain radioactivity
D.
It could not explain electron stability
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ANSWER :
D. It could not explain electron stability
8.
What does the deflection of alpha particles at large angles indicate?
A.
Presence of neutrons
B.
The presence of electron shells
C.
Uniform charge distribution
D.
Presence of a dense nucleus
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ANSWER :
D. Presence of a dense nucleus
9.
In Rutherford’s alpha-particle scattering experiment, most of the alpha particles passed through the foil without deflection. What does this indicate?

NEET - 2016

A.
The nucleus is positively charged
B.
Most of the atom is empty space
C.
The nucleus is very dense
D.
Alpha particles are neutral
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ANSWER :
B. Most of the atom is empty space
10.
Which subatomic particle was not discovered at the time of Rutherford’s experiment?
A.
Proton
B.
Electron
C.
Neutron
D.
Photon
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ANSWER :
D. Photon
11.
The nucleus was found to be:
A.
Spread throughout the atom
B.
Very small but massive
C.
Negligibly small and lightweight
D.
Spread throughout the atom
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ANSWER :
B. Very small but massive
12.
What conclusion was drawn from the fact that a few alpha particles were deflected back in Rutherford’s experiment?

NEET - 2017

A.
Atoms are indivisible
B.
Atoms have a small, dense nucleus
C.
Atoms are mostly empty
D.
Atoms contain neutrons
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ANSWER :
B. Atoms have a small, dense nucleus