Young's Modulus of Elasticity of the Material of a Metallic Wire NEET Questions

Physics - Experimental Skills

Young's Modulus of Elasticity of the Material of a Metallic Wire MCQ Questions


1.
Elasticity is the property of a material by virtue of which it:
A.
Becomes stronger after deformation
B.
Regains its original shape and size after the deforming force is removed
C.
Loses all its mass
D.
Permanently changes its shape
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ANSWER :
B. Regains its original shape and size after the deforming force is removed
2.
Plasticity is the property of a material by virtue of which it:
A.
Does NOT regain its original shape and size after the deforming force is removed
B.
Increases its temperature
C.
Becomes a liquid
D.
Always returns to its original shape
😑 View Answer Rough Work Error
ANSWER :
A. Does NOT regain its original shape and size after the deforming force is removed
3.
Stress is defined as:
A.
External force per unit volume
B.
Force / volume
C.
Force × area
D.
Internal restoring force per unit area
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ANSWER :
D. Internal restoring force per unit area
4.
Strain is defined as:
A.
Change in dimension only
B.
Original dimension only
C.
The ratio of change in dimension to the original dimension
D.
Force per unit area
😑 View Answer Rough Work Error
ANSWER :
C. The ratio of change in dimension to the original dimension
5.
The SI unit of stress is:
A.
N·m
B.
N/m³
C.
Joule
D.
N/m² or pascal (Pa)
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ANSWER :
D. N/m² or pascal (Pa)
6.
The SI unit of strain is:
A.
N/m²
B.
pascal
C.
metre
D.
Dimensionless (no unit)
😑 View Answer Rough Work Error
ANSWER :
D. Dimensionless (no unit)