Units and Measu...

SI unit of a physical quantity whose dimensional formula is $${ M }^{ -1 }{ L }^{ -2 }{ T }^{ 4 }{ A }^{ 2 }$$ is :

A is a tank filled to its 75% with water, B is a weighing balance and C is a stone hung from a stand. If fig. 1 is correct, what do you expect to be the position of needle in fig. 2?

The dimensions of
$$\left ( \mu _{0}\varepsilon _{0} \right )^{-1/2}$$ are:

The velocity $$v$$ of a particle at time $$t$$ is given by $$v = at + \frac{b} {t + c}$$, where $$a, b\ and\ c$$ are constants.The dimensions of $$a, b\ and\ c$$ are respectively:

If the units of ML are doubled, then the unit of kinetic energy will become :

The dimension of the ratio of angular momentum to linear momentum is 

$$ M^{-1}L^{-2}T^3\theta^1 $$ are the dimensions of :

The number of significant figures in 3400 is :

The string of a kite is 100 m long and it makes

an angle of $$60^{0}$$ with the horizontal. If there is no slack in

the string, find the height of the kite from the ground.

The dimensions of intensity of energy are :