If a bimetallic strip is heated, it will

English

Gujarati

Hindi

11.Thermodynamics

normal

If a bimetallic strip is heated, it will

Bend towards the metal with lower linear thermal expansion coefficient

Bend towards the metal with higher linear thermal expansion coefficient

Not bend at all

None

Solution

A bimetallic strip consists of two metal strips fastened together. Metals are chosen that expand at different rates when the strips get hot. When one strip gets longer than the other, the combination has to bend. These strips are often used in thermostats in houses to control the house temperature. When the strip is cold, it bends one way, and as it gets hotter it bends the other way.

Standard 11

Physics

In a thermodynamic process helium gas obeys the law $TP^{-2 /5} =$ constant. The heat given to the gas when the temperature of $2$ moles of the gas is raised from $T$ to $4T$ $(R$ is the universal gas constant) is :-

normal

A cyclic process $ABCDA$ is shown in the $P-V$ diagram. Which of the following curves represent the same process

normal

An ideal gas is expanding such that $PT^2$ = constant. The coefficient of volume expansion of the gas is :-

normal

A monoatomic gas $(\gamma = 5/3)$ is suddenly compressed to $\frac{1}{8}$ of its original volume adiabatically, then the pressure of the gas will change to

normal

A Carnot engine operating between temperatures $T_1$ and $T_2$ has efficiency $\frac {1}{6}$ . When $T_2$ is lowered by $60\,K$ ; its efficiency increases to $\frac {1}{3}$. Then $T_1$ and $T_2$ are respectively

normal

If a bimetallic strip is heated, it will

Solution

Similar Questions

In a thermodynamic process helium gas obeys the law $TP^{-2 /5} =$ constant. The heat given to the gas when the temperature of $2$ moles of the gas is raised from $T$ to $4T$ $(R$ is the universal gas constant) is :-

A cyclic process $ABCDA$ is shown in the $P-V$ diagram. Which of the following curves represent the same process

An ideal gas is expanding such that $PT^2$ = constant. The coefficient of volume expansion of the gas is :-

A monoatomic gas $(\gamma = 5/3)$ is suddenly compressed to $\frac{1}{8}$ of its original volume adiabatically, then the pressure of the gas will change to

A Carnot engine operating between temperatures $T_1$ and $T_2$ has efficiency $\frac {1}{6}$ . When $T_2$ is lowered by $60\,K$ ; its efficiency increases to $\frac {1}{3}$. Then $T_1$ and $T_2$ are respectively

Start a Free Trial Now