Two holes of unequal diameters $d_1$ and $d_2$ $({d_1} > {d_2})$ are cut in a metal sheet. If the sheet is heated
Both $d_1$ and $d_2$ will decrease
Both $d_1$ and $d_2$ will increase
$d_1 $ will increase, $d_2$ will decrease
$d_1$ will decrease, $d_2$ will increase
The coefficient of volume expansion of glycerin is $49 \times 10^{-5} \,K ^{-1}$. The fractional change in the density on a $30^{\circ} C$ rise in temperature is ..........
Two marks on a glass rod $10\, cm$ apart are found to increase their distance by $0.08\, mm$ when the rod is heated from $0\,^oC$ to $100\,^oC$. A flask made of the same glass as that of rod measures a volume $1000\, cc$ at $0\,^oC$. The volume it measures at $100\,^oC$ in $cc$ is
A surveyor's $30$-$m$ steel tape is correct at some temperutre. On a hot day the tape has expanded to $30.01$ $m$. On that day, the tape indicates a distance of $15.52$ $m$ between two points. The true distance between these points is :-
What is volume expansion ? Give definition and unit of coefficient of volume expansion.
A gas in an airtight container is heated from $25°C$ to $90°C$. The density of the gas will