Chapter 18 – Temperature and Thermal Expansion

A one litre flask contains some mercury. It is found that at different temperatures the volume of air inside the flask remains the same. The volume of mercury in the flask is (alpha_(glass)=9×10^(-6)/C,gamma_(Hg)=180xx10^(-6)/C) Maximum density of H2O is at the temperature : September 6, 2021 Category: Cengage NEET by C.P Singh , Chapter 18 - [...]

A horizontal tube, open at both ends, contains a column of liquid. The length of this liquid column does not change with temperature. Let gamma : coefficient of volume expansion of the liquid and alpha : coefficient of linear expansion of the material of the tube A horizontal tube Maximum density of H2O is at [...]

The volume of a block of a metal changes by 0.12 % when it is heated through 20 C . The coefficient of linear expansion of the metal is. The volume of a block of a metal changes by 0.12 % when it is heated through 20 C . The coefficient of linear expansion of [...]

If the temperature of a uniform rod is slightly increased by Delta t, its moment of inertia I about a line parallel to itself will increased by If the temperature of a uniform rod is slightly increased by Delta t its moment of inertia I about a line parallel to itself will increased by September [...]

A steel sheet at 20 C has the same surface area as a brass sheet at 10 C . If the coefficient of linear expansion of steel is 11×10^(-6)/K and that of brass is 19×10^(-6)/K , the common temperature at which both the sheets would have the same surface area is A steel sheet at [...]

If the temperature of a uniform rod is slightly increased by Delta t, its moment of inertia I about a perpendicular bisector increased by If the temperature of a uniform rod is slightly increased by Delta t its moment of inertia I about a perpendicular bisector increased by September 6, 2021 Category: Cengage NEET by [...]

When the temperature of a rod increases from t to t +Δt its moment of inertia increases from I to I + ΔI . The coefficient of linear expansion of the body is a, then ratio ΔI/I is equal to then ratio ΔI/I is equal to When the temperature of a rod increases from t [...]

Two identical rectangular strips one of copper and other of steel are riveted together to form a bimetallic strip (αcopper > αsteel). On heating this strip will Two identical rectangular strips one of copper and other of steel are riveted together to form a bimetallic strip (αcopper > αsteel). On heating this strip will September [...]

A measuring tape made of steel is calibrated at 5 C . If the coefficient of linear expansion of steel 10^(-5)/C . If the coefficient of linear expansion of steel 10^(-5)/C , the percent error in measurement at 40 C is A measuring tape made of steel is calibrated at 5 C . If the [...]

Three rods of equal length are joined to form an equilateral triangle ABC. D is the midpoint of AB. The coefficient of linear expansion is α1 for AB, and α2 for AC and BC. If the distance DC remains constant for small changes in temperature, and α2 for AC and BC. If the distance DC [...]