Fundamental and Derived Units, Least Count and Significant Figures NEET Questions

Physics - Physics and Measurement

Fundamental and Derived Units, Least Count and Significant Figures MCQ Questions


13.
The dimensional formula of the derived unit Pascal (Pa) is:
A.
[MLT⁻²]
B.
[ML²T⁻²]
C.
[ML⁻¹T⁻²]
D.
[MLT⁻¹]
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ANSWER :
C. [ML⁻¹T⁻²]
14.
Which pair of SI base units is used to derive the unit of velocity?
A.
Kilogram and second
B.
Metre and second
C.
Metre and kilogram
D.
Ampere and second
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ANSWER :
B. Metre and second
15.
Which of the following pairs have the same dimensions?

NEET - 2023

A.
Force and Pressure
B.
Work and Power
C.
Work and Energy
D.
Momentum and Force
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ANSWER :
C. Work and Energy
16.
In FPS system, the units of force is 'poundal'. Its dimensional formula is same as SI unit:
A.
Joule
B.
Newton
C.
Pascal
D.
Watt
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ANSWER :
B. Newton
17.
The unit 'litre' is NOT an SI unit but is retained for general use. 1 litre is equal to:
A.
1 m³
B.
10⁻³ m³
C.
10⁻² m³
D.
10⁻⁶ m³
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ANSWER :
B. 10⁻³ m³
18.
Which of the following physical quantities has the same SI unit as that of energy?
A.
Power
B.
Force
C.
Torque
D.
Pressure
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ANSWER :
C. Torque