A wire is stretched to four times of its length its strain is
Correct answer: C. 3
- A. 0.5
- B. 4
- C. 3
- D. 1
Explanation
As, Strain= ΔL/Lwhere, ΔL=4L-L=3LSo, the strain is: Strain= ΔL/L =3L/L =3So, the strain is 3. This is a unitless quantity as it is a ratio of lengths.
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