Units & Measurements · Physics · WB JEE

The velocity of a particle (v) at an instant t is given by $$v = at + b{t^2}$$ the dimension of b is

The Power $$(\mathrm{P})$$ radiated from an accelerated charged particle is given by $$\mathrm{P} \propto \frac{(q \mathrm{a})^{\mathrm{m}}}{\mathrm{c...

Which of the following quantity has the dimension of length ? (h is Planck's constant, m is the mass of electron and c is the velocity of light)...

In an experiment, the length of an object is measured to be 6.50 cm. This measured value can be written as 0.0650 m. The number of significant figures...

A modified gravitational potential is given by $$\mathrm{V}=-\frac{\mathrm{GM}}{\mathrm{r}}+\frac{\mathrm{A}}{\mathrm{r}^{2}}$$. If the constant A is ...

Given : The percentage error in the measurements of A, B, C and D are respectively, 4%, 2%, 3% and 1%. The relative error in $$Z = {{{A^4}{B^{{1 \over...

The Entropy (S) of a black hole can be written as $$S = \beta {k_B}A$$, where kB is the Boltzmann constant and A is the area of the black hole. The $$...

From dimensional analysis, the Rydberg constant can be expressed in terms of electric charge (e), mass (m) and Planck constant (h) as [consider $${1 \...

The frequency v of the radiation emitted by an atom when an electron jumps from one orbit to another is given by v = k$$\delta $$E, where k is a const...

The correct dimensional formula for impulse is given by

The density of the material of a cube can be estimated by measuring its mass and the length of one of its sides. If the maximum error in the measureme...

A spherical liquid drop is placed on a horizontal plane. A small distance causes the volume of the drop to oscillate. The time period of oscillation (...

The dimension of the universal constant of gravitation, G is

Write down the relation between tesla and gauss.