A bimetallic strip consists of metals $X$ and $Y.$ It is mounted rigidly at the base as shown in the figure. The metal $X$ has a higher coefficient of expansion as compared to that for metal $Y.$ When the bimetallic strip is placed in a cold bath ?
It will bend towards the right
It will bend towards the left
It will not bend but shrink
It will neither bend nor shrink
A metal rod of silver at $0°C$ is heated to $100°C$. It's length is increased by $0.19\, cm$. Coefficient of cubical expansion of the silver rod is
Two thermometers $X$ and $Y$ have ice points marked at $15^o$ and $25^o$ and steam points marked as $75^o$ and $125^o$ respectively. When thermometer $X$ measures the temperature of a bath as $60^o$ on it, ..... $^oC$ would thermometer $Y$ read when it is used to measure the temperature of the same bath ?
A lead bullet at $27\,^oC$ just melts when stopped by an obstacle. Assuming that $25\%$ of heat is absorbed by the obstacle, then the velocity of the bullet at the time of striking is ........ $m/s$ ($M.P.$ of lead $= 327\,^oC,$ specific heat of lead $= 0.03\,cal/g\,^oC,$ latent heat of fusion of lead $= 6\,cal/g$ and $J = 4.2\,joule/cal$ )
On centigrade scale the temperature of a body increases by $30$ degrees. The increase in temperature on Fahrenheit scale is ..............
Liquid oxygen at $50\ K$ is heated to $300\ K$ at constant pressure of $1\ atm$. The rate of heating is constant. Which of the following graphs represents the variation of temperature with time ?