Question

Write some to be remembered while finding dimensions of unknown quantity

Answer 1

Explanation:

SOME POINTS TO BE REMENBERED-----------

1. only physical quantities can be added or subtracted which have same dimensions .
2. dimensions of left hand side of equation are equals two dimensions of right hand side of equation
3. angle is dimensionless .
4. trigonometric ratios are dimensionless .
5. exponents are dimensionless .
6. e is dimensionless .
7. e^x is dimensionless.
8. logarithmic functions are dimensionless .
9. it is not compulsory that the formula which is dimensionally correct is must be physically correct .
10. put all the dimensional formulas correctly and check them again after writing them