Hooke's Law (Elastic Behaviour and Stress-Strain Relationship) NEET Questions

Physics - Properties of Solids and Liquids

Hooke's Law (Elastic Behaviour and Stress-Strain Relationship) MCQ Questions


7.
The SI unit of stress is:
A.
kg m⁻¹
B.
N m⁻³
C.
N m
D.
N m⁻² (Pascal)
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ANSWER :
D. N m⁻² (Pascal)
8.
Which type of stress is produced when two equal and opposite forces are applied parallel to the cross-sectional area of a body?
A.
Compressive stress
B.
Shearing (tangential) stress
C.
Tensile stress
D.
Hydraulic stress
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ANSWER :
B. Shearing (tangential) stress
9.
Tensile stress and compressive stress are together called:
A.
Longitudinal stress
B.
Hydraulic stress
C.
Shearing stress
D.
Volume stress
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ANSWER :
A. Longitudinal stress
10.
When a solid sphere is subjected to uniform pressure from all sides by a surrounding fluid, the stress is called:
A.
Longitudinal stress
B.
Shearing stress
C.
Hydraulic stress
D.
Tensile stress
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ANSWER :
C. Hydraulic stress
11.
The dimensional formula of stress is:
A.
[ML⁻¹T⁻²]
B.
[ML²T⁻²]
C.
[M⁰L⁰T⁰]
D.
[MLT⁻²]
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ANSWER :
A. [ML⁻¹T⁻²]
12.
Longitudinal strain is defined as:
A.
Change in length divided by original length (ΔL/L)
B.
Lateral displacement divided by height
C.
Force applied per unit area
D.
Change in volume divided by original volume
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ANSWER :
A. Change in length divided by original length (ΔL/L)