Question

what is the SI unit of strain​

Answer 1

There is no unit of strain.. since it's a measure of similar quantity

Answer 2

Answer:

The unit for strain in the SI (system international) is one i. e 1 E =1 1m/m.in practice, the unit for strain in called strain and symbol e is used. usually, strain is in the order of um/m i.e.10-6,and therefore, the unit (microstrain)is the most commonly used.