Plz answer the question with complete steps as well as explanation.............plz answer as soon as possible

Dear student,

Please note that unity(as expressed in ) has no dimensions. Since a dimensionless quantity can only be added with a dimensionless quantity,must also be dimensionless. Hence the dimensions ofmust be same as that of.

Now, in the expression of, the term under the square root must be dimensionless since it is square root of dimensionless quantities. Hence the dimension ofis that ofwhich is that of(as already found).
Hence the unit of is meters.

Approved