Elastic Behaviour, Stress & Strain
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Steel is used in the construction of buildings and bridges.
Reason R: Steel is more elastic and its elastic limit is high.
In the light of above statements, choose the most appropriate answer from the options given below
Show answer and solution
Answer: (a)
- Steel has a high Young's modulus (more elastic) and a high elastic limit.
- So it deforms little and returns to shape under heavy loads, which is why it is used in buildings and bridges.
- Both are true and (R) explains (A).
- So the answer is (a).