Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
The coefficient of linear expansion of glass is alpha g per C and the cubical expansion of mercury is lemda m per C. The volume of the bulb of a mercury thermometer at 0 C is V0 and cross section
24
Oct
The coefficient of linear expansion of glass is alpha g per C and the cubical expansion of mercury is lemda m per C. The volume of the bulb of a mercury thermometer at 0 C is V0 and cross section The coefficient of linear expansion of glass is alpha g per C and the cubical [...]
Calculate the compressional force required to prevent the metallic rod of length l cm and cross-sectional area A cm^2 when heated through t C, from expanding lengthwise.
24
Oct
Calculate the compressional force required to prevent the metallic rod of length l cm and cross-sectional area A cm^2 when heated through t C, from expanding lengthwise. Calculate the compressional force required to prevent the metallic rod of length l cm and cross-sectional area A cm^2 when heated through t C from expanding lengthwise. October [...]
The current i in an induction coil varies with time according to the graph shown in figure. Which of the following graphs shows induced emf in the coil with time :
24
Oct
The current i in an induction coil varies with time according to the graph shown in figure. Which of the following graphs shows induced emf in the coil with time : The current i in an induction coil varies with time according to the graph shown in figure. Which of the following graphs shows induced [...]
A uniform brass disc of radius a and mass m is set into spinning with angular speed omega 0 about an axis passing through centre of disc and perpendicular to the plane of disc.
24
Oct
A uniform brass disc of radius a and mass m is set into spinning with angular speed omega 0 about an axis passing through centre of disc and perpendicular to the plane of disc. A uniform brass disc of radius a and mass m is set into spinning with angular speed omega 0 about an [...]
In the circuit shown in figure, sliding contact is moving with uniform velocity towards right. Its value at some instance is 12 ohm. The current in the circuit at this instant of time will be
24
Oct
In the circuit shown in figure, sliding contact is moving with uniform velocity towards right. Its value at some instance is 12 ohm. The current in the circuit at this instant of time will be In the circuit shown in Figure sliding contact is moving with uniform velocity towards right. Its value at some instance [...]
A piece of metal floats in mercury. The coefficients of volume expansion of the metal and mercury are lemda 1 and lemda 2, respectively. If the temperatures of both mercury and the metal
24
Oct
A piece of metal floats in mercury. The coefficients of volume expansion of the metal and mercury are lemda 1 and lemda 2, respectively. If the temperatures of both mercury and the metal A piece of metal floats in mercury. The coefficients of volume expansion of the metal and mercury are lemda 1 and lemda [...]
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 [...]