Rutherford's Model of Atom NEET Questions

Physics - Atoms and Nuclei

Rutherford's Model of Atom MCQ Questions


13.
The atom in Rutherford's model is mostly:
A.
Solid matter
B.
Filled with positive charge
C.
Filled with negative charge
D.
Empty space
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ANSWER :
D. Empty space
14.
In Rutherford's model, the electrons are at a distance from the nucleus that is roughly how many times the size of the nucleus?
A.
10,000 to 100,000 times
B.
About 1,000,000 times
C.
10 times
D.
100 to 1000 times
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ANSWER :
A. 10,000 to 100,000 times
15.
Rutherford's model is analogous to which physical system?
A.
Pool table with balls
B.
Atom of solid sphere
C.
Plum pudding (raisins in a cake)
D.
Solar system (sun and planets)
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ANSWER :
D. Solar system (sun and planets)
16.
In Rutherford's model, for a stable electron orbit in a hydrogen atom, the electrostatic force F_e must equal:
A.
Gravitational force
B.
The centripetal force F_c
C.
Magnetic force
D.
Nuclear force
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ANSWER :
B. The centripetal force F_c
17.
The relation between the orbital radius r and electron velocity v in Rutherford's model of hydrogen atom is:
A.
r = e²/(4πε₀mv)
B.
r = e²/(4πε₀mv²)
C.
r = e²v/(4πε₀m)
D.
r = e/(4πε₀mv²)
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ANSWER :
B. r = e²/(4πε₀mv²)
18.
The kinetic energy of an electron in a hydrogen atom orbit (radius r) according to Rutherford's model is:
A.
K = e²/(4πε₀r²)
B.
K = e²/(4πε₀r)
C.
K = −e²/(8πε₀r)
D.
K = e²/(8πε₀r)
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ANSWER :
D. K = e²/(8πε₀r)