Heisenberg Uncertainty Principle NEET Questions

Physical Chemistry - Atomic Structure

Heisenberg Uncertainty Principle MCQ Questions


13.
The uncertainty principle places a fundamental limit on
A.
Determination of mass
B.
Determination of charge
C.
Simultaneous measurement of position and momentum
D.
Calculation of radius
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ANSWER :
C. Simultaneous measurement of position and momentum
14.
The uncertainty principle is a consequence of the dual nature of matter as proposed by
A.
Bohr
B.
Planck
C.
Einstein
D.
De Broglie
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ANSWER :
D. De Broglie
15.
Heisenberg’s uncertainty principle states that it is impossible to measure the exact

NEET - 2017

A.
Position of an electron
B.
Momentum of an electron
C.
Both position and momentum of an electron simultaneously
D.
Energy of an electron
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ANSWER :
C. Both position and momentum of an electron simultaneously
16.
Heisenberg's uncertainty principle has no practical effect in everyday life because
A.
The uncertainties are too large
B.
Macroscopic objects obey Newton’s laws
C.
Macroscopic objects have negligible uncertainties
D.
Quantum mechanics does not apply to macroscopic objects
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ANSWER :
C. Macroscopic objects have negligible uncertainties
17.
According to Heisenberg’s uncertainty principle, the product of uncertainties in position and momentum is of the order of
A.
h
B.
1/h
C.
1/h²
D.
h²
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ANSWER :
A. h
18.
If the position of an electron is accurately determined, then its momentum is
A.
Also accurately determined
B.
Zero
C.
Infinite
D.
Highly uncertain
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ANSWER :
D. Highly uncertain