Alpha-Particle Scattering Experiment NEET Questions

Physics - Atoms and Nuclei

Alpha-Particle Scattering Experiment MCQ Questions


1.
Which element was used as the target in Rutherford’s alpha-particle scattering experiment?
A.
Copper
B.
Platinum
C.
Silver
D.
Gold
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ANSWER :
D. Gold
2.
What was the main conclusion of Rutherford’s experiment?
A.
Atoms are indivisible
B.
Electrons are embedded in a positive sphere
C.
Most of the atom is empty space
D.
The nucleus contains electrons
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ANSWER :
C. Most of the atom is empty space
3.
According to Rutherford’s observations, most of the alpha particles:
A.
Were absorbed
B.
Got annihilated
C.
Passed through undeflected
D.
Merged with gold atoms
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ANSWER :
C. Passed through undeflected
4.
Why did some alpha particles deflect at large angles in Rutherford’s experiment?
A.
Due to weak nuclear force
B.
Due to gravitational attraction
C.
Due to repulsion by the nucleus
D.
Due to the presence of electrons
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ANSWER :
C. Due to repulsion by the nucleus
5.
Which scientist performed the alpha-particle scattering experiment?

NEET - 2015

A.
J.J. Thomson
B.
Ernest Rutherford
C.
James Chadwick
D.
Niels Bohr
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ANSWER :
B. Ernest Rutherford
6.
What fraction of alpha particles bounced back in the Rutherford experiment?
A.
About 50%
B.
About 75%
C.
About 10%
D.
About 1 in 8000
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ANSWER :
D. About 1 in 8000