A rigid body weighs 25 gram and has a measured volume of $5 \mathrm{~cm}^3$. The possible error in the measurement of mass and volume are 0.01 gram and $0.1 \mathrm{~cm}^3$. The maximum error in the density will be
$24 \%$
$2.4 \%$
$4.02 \%$
$2.04 \%$
The average kinetic energy of a molecule of the gas is
proportional to pressure.
proportional to volume.
proportional to absolute temperature.
dependent on the nature of the gas.
$\frac{1}{50} \mathrm{~s}$
$\frac{1}{100} \mathrm{~s}$
$\frac{1}{200} \mathrm{~s}$
$\frac{1}{400} \mathrm{~s}$
The average velocity of a particle performing S.H.M. in one complete vibration is ( $\mathrm{A}=$ amplitude of S.H.M., $\omega=$ angular velocity)
zero
$\mathrm{A} \omega$
$\frac{\mathrm{A} \omega}{2}$
$\frac{\mathrm{A} \omega^2}{2}$
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