65th B.P.S.C. (Pre) 2019
Which one of the following quantities does not have unit?
aStress
bForce
cStrain✓ Correct
dPressure
eNone of the above/More than one of the above
Explanation
The ratio of the change in dimension of an object to its original dimension is called strain. Strain is a dimensionless quantity; therefore, it has no unit. ## Page 45
general-science