NEET Questions

Which of the following temperature scales has an absolute zero where all molecular motion theoretically ceases?

A bimetallic strip, made of materials with different coefficients of thermal expansion, bends when heated. This bending is primarily due to:

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?

The rms speed of the molecules of a gas at a certain temperature is $v$. If the temperature is increased by a factor of 4, what is the new rms speed?

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?

If the pressure of an ideal gas is doubled while keeping the volume constant, what happens to the rms speed of the gas molecules?

In a metre bridge experiment, null point is obtained at $l$ cm from the left end using resistance $R$ and $S$. If the temperature of $R$ increases, which of the following correctly describes the shift in the null point?

At what temperature will the average speed of CH₄ molecules be the same as that of H₂ molecules at 27°C?

Which factor has the greatest influence on the average kinetic energy of gas molecules?

A ferromagnetic material with Curie temperature $T_C$ is heated to a temperature $T > T_C$. Which of the following best describes its magnetic susceptibility ($\chi$) at temperature $T$?