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.
Young’s modulus is defined as the ratio of:
A.
Stress to strain
B.
Strain to stress
C.
Force to area
D.
Force to elongation
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ANSWER :
A. Stress to strain
2.
The SI unit of Young’s modulus is:
A.
N/m
B.
N/m²
C.
Pa
D.
kg/m²
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ANSWER :
B. N/m²
3.
Which of the following materials has the highest Young’s modulus?
A.
Rubber
B.
Glass
C.
Aluminium
D.
Steel
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ANSWER :
D. Steel
4.
If the length of a wire is doubled and the diameter remains the same, the Young’s modulus will:
A.
Remain the same
B.
Double
C.
Halve
D.
Increase four times
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ANSWER :
A. Remain the same
5.
Which physical quantity remains constant in the calculation of Young’s modulus?
A.
Volume
B.
Length
C.
Mass
D.
Density
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ANSWER :
B. Length
6.
The Young’s modulus of a perfectly rigid body is:
A.
Zero
B.
Infinity
C.
Very large
D.
Very small
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ANSWER :
B. Infinity