Statement I : Strain is a unitless quantity
Statement II : Strain is equivalent to force.
If both statement I and statement II are true and statement II is the correct explanation of statement I.
If both statement I and statement II are true but statement II is not the correct explanation of statement I.
If statement I is true but statement II is false
If both statement I and statement II are false
Strain is the ratio of change in dimensions of the body to the original dimension. Because it is a ratio, it is a dimensionless quantity.