Quick practice
Question 1 of 5
1. When a body is subjected to a deforming force, a restoring force is developed in the body. This restoring force is equal in magnitude but opposite in direction to the applied force.
2. The restoring force per unit area is known as stress.
3. In Tensile and compressive stress there is a change in the length of the cylinder. The change in the length 
L to the original length L of the body (cylinder in this case) is known as longitudinal strain
Which of the above options is/are correct?
A
1 and 3
B
2 and 3
C
1 and 2
D
1, 2, and 3
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