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The coefficient of linear expansion for a certain metal varies with temperature as alpha (T). If L0 is the initial length of the metal and the temperature of metal is changed from T0 to
24
Oct
The coefficient of linear expansion for a certain metal varies with temperature as alpha (T). If L0 is the initial length of the metal and the temperature of metal is changed from T0 to The coefficient of linear expansion for a certain metal varies with temperature as alpha (T). If L0 is the initial length [...]
In a motor, the electrical power input is 500 W and the mechanical power output is 0.54 horse power. Heat developed in the motor in 1 h is (assuming that all the electric energy
24
Oct
In a motor, the electrical power input is 500 W and the mechanical power output is 0.54 horse power. Heat developed in the motor in 1 h is (assuming that all the electric energy In a motor the electrical power input is 500 W and the mechanical power output is 0.54 horse power. Heat developed [...]
Water at 0 C, contained in a closed vessel, is abruptly opened in an evacuated chamber. If the specific latent heats of fusion and vapourization at 0 C are in the ration lemda : 1,
24
Oct
Water at 0 C, contained in a closed vessel, is abruptly opened in an evacuated chamber. If the specific latent heats of fusion and vapourization at 0 C are in the ration lemda : 1, contained in a closed vessel is abruptly opened in an evacuated chamber. If the specific latent heats of fusion and [...]
The given figure shows the graphs of elongation versus temperature for two different metals. If these metals are employed to form a straight bimetallic strip of thickness 6 cm and heated,
24
Oct
The given figure shows the graphs of elongation versus temperature for two different metals. If these metals are employed to form a straight bimetallic strip of thickness 6 cm and heated, The given figure shows the graphs of elongation versus temperature for two different metals. If these metals are employed to form a straight bimetallic [...]
A platinum sphere floats in mercury. Find the percentage change in the fraction of volume of sphere immersed in mercury when the temperature is raised by 80 C (volume expansivity of mercury
24
Oct
A platinum sphere floats in mercury. Find the percentage change in the fraction of volume of sphere immersed in mercury when the temperature is raised by 80 C (volume expansivity of mercury A platinum sphere floats in mercury. Find the percentage change in the fraction of volume of sphere immersed in mercury when the temperature [...]
A thin circular metal disc of radius 500.0 mm is set rotating about a central axis normal to its plane. Upon raising its temperature gradually, the radius increases to 507.5 mm. The percentage
24
Oct
A thin circular metal disc of radius 500.0 mm is set rotating about a central axis normal to its plane. Upon raising its temperature gradually, the radius increases to 507.5 mm. The percentage A thin circular metal disc of radius 500.0 mm is set rotating about a central axis normal to its plane. Upon raising [...]
A glass vessel is filled up to 3/5th of its volume by mercury. If the volume expansivities of glass and mercury be 9 * 10^-6/C and 18 * 10^-5/C, respectively, then the coefficient of apparent
24
Oct
A glass vessel is filled up to 3/5th of its volume by mercury. If the volume expansivities of glass and mercury be 9 * 10^-6/C and 18 * 10^-5/C, respectively, then the coefficient of apparent A glass vessel is filled up to 3/5th of its volume by mercury. If the volume expansivities of glass and [...]
The apparent coefficient of expansion of a liquid when heated, filled in vessel A and B of identical volumes, is found to be lemda 1 and lemda 2, respectively. If alpha 1 be the linear
24
Oct
The apparent coefficient of expansion of a liquid when heated, filled in vessel A and B of identical volumes, is found to be lemda 1 and lemda 2, respectively. If alpha 1 be the linear filled in vessel A and B of identical volumes is found to be lemda 1 and lemda 2 respectively. If [...]
A container of capacity 700 mL is filled with two immiscible liquids of volume 200 mL and 500 mL with respective volume expansivities as 1.4 * 10^-5/C and 2.1 * 10^-5/C. During the heating of the vessel,
24
Oct
A container of capacity 700 mL is filled with two immiscible liquids of volume 200 mL and 500 mL with respective volume expansivities as 1.4 * 10^-5/C and 2.1 * 10^-5/C. During the heating of the vessel, A mass m of lead shot is placed at the bottom of a vertical cardboard cylinder that is [...]
The length of a steel rod exceeds that of a brass rod by 5 cm. If the difference in their lengths remains same at all temperatures, then the length of brass rod will be: (alpha for iron and brass
24
Oct
The length of a steel rod exceeds that of a brass rod by 5 cm. If the difference in their lengths remains same at all temperatures, then the length of brass rod will be: (alpha for iron and brass The length of a steel rod exceeds that of a brass rod by 5 cm. If [...]