NEET Questions

Two identical solid discs are rotating about their axes. Disc A rotates at an angular speed $ω$ and disc B rotates at $2ω$. What is the ratio of their rotational kinetic energies?

A sealed container of fixed volume holds a mixture of two ideal monatomic gases, A and B, at a temperature $T$. The molar mass of gas A is twice that of gas B. If the average translational kinetic energy of the molecules of gas A is $K_A$ and that of gas B is $K_B$, which of the following is true?

A closed container of fixed volume contains an ideal gas. If the temperature of the gas is doubled, what happens to the average kinetic energy of the gas molecules?

At what temperature is the average kinetic energy of a gas molecule equal to the average kinetic energy of the same molecule at 27°C?

A particle of mass $m$ executes SHM with amplitude $A$ and angular frequency $\omega$. What is the average kinetic energy of the particle over one complete oscillation?

A particle of mass 'm' executes SHM with amplitude 'A' and angular frequency 'ω'. At a displacement 'x' from the mean position, its kinetic energy is K and potential energy is U. If $K = nU$, then what is the value of $|x|$?

A particle performs SHM with total energy E. What is its kinetic energy when its displacement is half the amplitude?

In SHM, the kinetic energy of the particle is maximum when its:

An electron is accelerated through a potential difference 'V'. What is its final kinetic energy?

Two gases, A and B, have the same average kinetic energy. If the molar mass of A is four times that of B, what is the ratio of their root mean square speeds (v_A/v_B)?