A thin copper wire of length $L$ increase in length by $1\%$ when heated from temperature $T_1$ to $T_2$. What is the percentage change in area when a thin copper plate having dimensions $2L\times  L$ is heated from $T_1$ to $T_2$ ? ....... $\%$

  • A

    $1$

  • B

    $2$

  • C

    $3$

  • D

    $4$

Similar Questions

A steel tape gives correct measurement at $20^o C$. A piece of wood is being measured with the steel tape at $0^o C$. The reading is $25 \,\,cm$ on the tape, the real length of the given piece of wood must be:

$5$ litre of benzene weighs

A metallic bar of Young's modulus, $0.5 \times 10^{11} \mathrm{~N} \mathrm{~m}^{-2}$ and coefficient of linear thermal expansion $10^{-5}{ }^{\circ} \mathrm{C}^{-1}$, length $1 \mathrm{~m}$ and area of cross-section $10^{-3} \mathrm{~m}^2$ is heated from $0^{\circ} \mathrm{C}$ to $100^{\circ} \mathrm{C}$ without expansion or bending. The compressive force developed in it is :

  • [NEET 2024]

A circular metallic disc of radius $R$ has a small circular cavity of radius $r$ as shown in figure. On heating the system

When a bimetallic strip is heated, it

  • [AIPMT 1990]