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


7.
Hooke's law states that within the elastic limit:
A.
Stress equals strain
B.
Stress is inversely proportional to strain
C.
Stress is directly proportional to strain
D.
Stress is independent of strain
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ANSWER :
C. Stress is directly proportional to strain
8.
Within the elastic limit, the ratio of stress to strain is called:
A.
Coefficient of friction
B.
Elastic limit
C.
Modulus of elasticity
D.
Stress-strain curve
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ANSWER :
C. Modulus of elasticity
9.
Which of the following has the same dimensions as stress?
A.
Pressure
B.
Energy
C.
Force
D.
Strain
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ANSWER :
A. Pressure
10.
Which of the following materials is most elastic?
A.
Wood
B.
Glass
C.
Steel
D.
Rubber
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ANSWER :
C. Steel
11.
Young's modulus is the ratio of:
A.
Shearing stress to shearing strain
B.
Volumetric stress to volumetric strain
C.
Stress to volume
D.
Longitudinal stress to longitudinal strain (within elastic limit)
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ANSWER :
D. Longitudinal stress to longitudinal strain (within elastic limit)
12.
The formula for Young's modulus Y is:
A.
Y = (ΔL × L)/(F × A)
B.
Y = (A × ΔL)/(F × L)
C.
Y = (F × A)/(L × ΔL)
D.
Y = (F × L)/(A × ΔL)
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ANSWER :
D. Y = (F × L)/(A × ΔL)