railway RRB Technician Grade 1 Mock Test 2024 Physics Units, Dimensions and Measurements Dimensional formulae and dimensional equations
If η = [ML-1T-1], where v is velocity, A is area, t is time, then which of the following is correct ?
1
\(\eta = A \frac{dv}{dt}\)
2
\(\eta = A \frac{dt}{dv}\)
3
\(\eta = \frac{1}{A} \frac{dv}{dt}\)
4
None of these