List of top Physics Questions on Dimensional Analysis asked in TS EAMCET

If \(B\) is magnetic induction, \(e\) is charge of electron, \(m\) is mass and \(c\) is speed of light in vacuum, then the physical quantity having dimensions of \[ \frac{4\pi mc}{Be} \] is

Consider a series of measurements of the length of a box in an experiment. The readings are 2.4m, 2.5m, 2.6m, 2.8m, 3.0m. What would be the relative error?

Dimensions of Universal Gravitational Constant (G) are: