List of top Physics Questions on Units and measurement asked in AIIMS

A potential difference V = 100 $\pm$ 5 V, when applied across a resistance, gives a current I = 10 ? 0.2 A, What is the percentage error in R?

Calculate the mean % error in five observations : 80.0, 80.5, 81.0, 81.5, 82

A physical quantity X is given by $X=\frac{2k^{3}l^{2}}{m\sqrt{n}}$ The percentage error in the measurements of k, l, m and n are 1%, 2%, 3% and 4% respectively. The value of X is uncertain by

Dimensional formula of $\Delta Q$, heat supplied to the system is

What is the dimensions of magnetic field B in terms of C (= coulomb), M, L, T?

Which of the following pairs does not have same dimensions ?

If the energy, $E = G^p \,h^q \,c^r$, where $G$ is the universal gravitational constant, $h$ is the Planck?? constant and $c$ is the velocity of light, then the values of $p$, $q$ and $r$ are, respectively

The dimensional formula for product of resistance and conductance is same as for dielectric constant. Both have dimensions of time constant.

What is the dimensions of impedance ?

Dimension of electrical resistance is

The difference in the lengths of a mean solar day and a sidereal day is about

S.I. units are logical and coherent. S.I. system of units is a rationalised system.

Length cannot be measure by

Dimension of resistivity is

Colour of a star depends upon

Speed in kilometer per hour in S.I. unit is represented as

S.I. unit of velocity is

How many significant figures are there in $30.00$ ?

Dimensions $\left[ ML ^{-1} T ^{-1}\right]$ are related to

The dimensions of angular velocity, is

Light year is a unit of:

Which of the following is a dimensionless quantity?

The dimension of the modulus of rigidity, is

One nanometre is equal to