Question

which of the following physical quantity is dimensionless
A) angle B) strain C) specific gravity D) all of these

Answer 1

Hii..

Here's your answer with little explanation. Please once you all read and understand..

Answer :- Strain.

Explanation :- Because Strain is ratio of two lengths, a measure of deformation – Increase/Decrease in length of wrt original length..

Thus the option B the correct answer..

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Answer 2

Answer:

strain

Explanation:

Strain is ratio of two lengths , a measure of deformation - increase/decrease in length wrt original length. Thus its dimensionless , option B is correct.