NEET 2021 Question Paper Mock Test

Two conducting circular loops of radii $R_1$ and $R_2$ are placed in the same plane with their centres coinciding. If $R_1\gg R_2$, the mutual inductance $M$ between them will be directly proportional to:

A particle of mass $m$ is projected with a velocity $u=k{v}_e$ ($k<1$) from the surface of the earth ($v_e$ = escape velocity). The maximum height above the surface reached by the particle is:

A uniform rod of length $200\text{cm}$ and mass $500\text{g}$ is balanced on a wedge placed at $40\text{cm}$ mark. A mass of $2\text{kg}$ is suspended from the rod at $20\text{cm}$ and another unknown mass $m$ is suspended from the rod at $160\text{cm}$ mark. Find the value of $m$ such that the rod is in equilibrium. ($g=10{\text{m/s}}^2$)

A ball of mass $0.15\text{kg}$ is dropped from a height $10\text{m}$, strikes the ground and rebounds to the same height. The magnitude of impulse imparted to the ball is ($g=10{\text{m/s}}^2$) nearly:

A particle moving in a circle of radius $R$ with a uniform speed takes a time $T$ to complete one revolution. If this particle were projected with the same speed at an angle $\theta$ to the horizontal, the maximum height attained by it equals $4R$. The angle of projection, $\theta$, is then given by: