Dimensions of Physics Quantities NEET Questions

Dimensions of Physics Quantities MCQ Questions

1.
The nature of a physical quantity is described by its:
A.
Units
B.
Magnitude
C.
Dimensions
D.
Numerical value
ANSWER :
C. Dimensions
2.
In mechanics, all physical quantities can be expressed using base dimensions:
A.
Only [L] and [T]
B.
[M], [L] and [T]
C.
All 7 SI dimensions
D.
[M], [L], [T] and [A]
ANSWER :
B. [M], [L] and [T]
3.
The physical quantity that has the same dimensional formula as pressure is:

NEET - 2022

A.
Force
B.
Momentum
C.
Young's modulus of elasticity
D.
Coefficient of viscosity
ANSWER :
C. Young's modulus of elasticity
4.
The dimensional formula of volume is:
A.
[ML³T⁰]
B.
[M⁰L²T⁰]
C.
[M⁰L³T⁰]
D.
[M⁰L³T⁻¹]
ANSWER :
C. [M⁰L³T⁰]
5.
The dimensional formula of force is:
A.
[MLT⁻¹]
B.
[ML²T⁻²]
C.
[MLT⁻²]
D.
[ML⁻¹T⁻²]
ANSWER :
C. [MLT⁻²]
6.
Which two of the following five physical parameters have the same dimensions?
1. Energy density
2. Refractive index
3. Dielectric constant
4. Young's modulus
5. Pressure

NEET - 2010

A.
1 and 2
B.
1 and 3
C.
1 and 5
D.
4 and 5
ANSWER :
C. 1 and 5