Question Answers
Sahay Sir > Question Answers
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
06
Sep
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
06
Sep
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
06
Sep
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
06
Sep
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
06
Sep
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
06
Sep
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,
06
Sep
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 [...]
A steel scale measures the length of a copper wire as 80.0 cm, when both are at 20^∘C, the calibration temperature for the scale. What would the scale read for the length of the rod when both are at 40^∘C ? Given: α for steel =11×10^−6 per ∘C and a for Cu=17×10^−6per∘C
06
Sep
A steel scale measures the length of a copper wire as 80.0 cm, when both are at 20^∘C, the calibration temperature for the scale. What would the scale read for the length of the rod when both are at 40^∘C ? Given: α for steel =11×10^−6 per ∘C and a for Cu=17×10^−6per∘C A steel scale [...]
An iron tyre is to be fitted on to a wooden wheel 1 m in diameter. The diameter of tyre is 6 mm smaller than that of wheel. The tyre should be heated so that its temperature increases by a minimum of (coefficient of volume expansion of iron is 3.6×10^-5/C)
06
Sep
An iron tyre is to be fitted on to a wooden wheel 1 m in diameter. The diameter of tyre is 6 mm smaller than that of wheel. The tyre should be heated so that its temperature increases by a minimum of (coefficient of volume expansion of iron is 3.6×10^-5/C) Maximum density of H2O is [...]
A constant volume gas thermometer shows pressure reading of 50cm and 90cm of mercury at 0 C and 100 C , respectively. When the pressure reading is 70cm of mercury, the temperature is
06
Sep
A constant volume gas thermometer shows pressure reading of 50cm and 90cm of mercury at 0 C and 100 C , respectively. When the pressure reading is 70cm of mercury, the temperature is A constant volume gas thermometer shows pressure reading of 50cm and 90cm of mercury at 0 C and 100 C respectively. When [...]