Units and Measu...

When $24.25\times { 10 }^{ 3 }$ is rounded off to three significant figures, it becomes :

Universal gravitational constant is given by $6.67\times { 10 }^{ -11 }N{ m }^{ 2 }{ kg }^{ -2 }$. Then the no. of significant figures in it is:

The radius of a sphere is $5$ cm. Its volume will be given by (according to the theory of significant figures) :

Two numbers are given as i) 20.96 and ii) 0.0003125. Rounding off above numbers to 3 significant figures will lead to :

The dimension of time in Electric field intensity is :

When we express the velocity of light, $30,00,00,000/ ms^{-1}$, in standard form up to three significant figures, it's value is:

If $'m$' is the mass of a body, $'a'$ is amplitude of vibration, and $'w '$ is the angular frequency then  $\frac { 1 }{ 2 } { ma }^{ 2 }{ w }^{ 2 }$ has same dimensional formula as :

$\left[ { M }^{ 1 }{ L }^{ 2 }{ T }^{ -3 }{ A }^{ -2 } \right]$is the dimensional formula of :

The dimension of magnetic induction in $M, L, T$ and $C$ (Coloumb) is given as:

The ratio $\dfrac { L }{ R }$ has the dimensions of:
 [ L:Inductance R:Resistance]