NEET Questions

A particle moves in a circular path of radius R. It completes one and a half revolutions. What is the ratio of the distance traveled to its displacement?

An ant crawls along the edges of a cube of side length 'a'. It starts at one corner and reaches the diagonally opposite corner. If the ant only crawls along the edges and takes the shortest possible path, what is the ratio of the distance it crawls to its displacement?

The dimensional formula for the gravitational constant G multiplied by the permittivity of free space $\epsilon_0$ is:

If the speed of light $c$, Planck's constant $h$ and gravitational constant $G$ are chosen as fundamental units, then the dimensions of time in terms of these units are:

The dimensional formula of permeability of free space $\mu_0$ is given by:

The quantity $\sqrt{\frac{\epsilon_0}{\mu_0}}$ has the dimensions of:

If the velocity of light $c$, gravitational constant $G$, and Planck's constant $h$ are chosen as fundamental units, then the dimensions of mass in this system are:

Given that the dimensions of angular momentum are [ML$^2$T$^{-1}$] and those of action are [ML$^2$T$^{-1}$], which of the following quantities is dimensionless?

A particle moves such that its displacement $x$ varies with time $t$ as $x = At^2 + Bt^3$. The graph of velocity versus time will be:

The position-time graph of a particle is a semicircle with radius $R$. The average velocity of the particle over the entire journey is: