Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
The ends of a metal rod are kept at temperature theta 1 and theta 2 with theta 2 > theta 1. The rate of flow of heat along the rod is directly proportional to
24
Oct
The ends of a metal rod are kept at temperature theta 1 and theta 2 with theta 2 > theta 1. The rate of flow of heat along the rod is directly proportional to The ends of a metal rod are kept at temperature theta 1 and theta 2 with theta 2 > theta 1. [...]
During the melting of a slab of ice at 273 K at the atmospheric pressure (1) positive work is done by the ice-water system on the atmosphere (2) positive work is done on the ice-water
24
Oct
During the melting of a slab of ice at 273 K at the atmospheric pressure (1) positive work is done by the ice-water system on the atmosphere (2) positive work is done on the ice-water During the melting of a slab of ice at 273 K at the atmospheric pressure (1) positive work is done [...]
During heat exchange, temperature of a solid mass does not change. In this process, heat (1) is not being supplied to the mass (2) is not being taken out from the mass
24
Oct
During heat exchange, temperature of a solid mass does not change. In this process, heat (1) is not being supplied to the mass (2) is not being taken out from the mass During heat exchange heat (1) is not being supplied to the mass (2) is not being taken out from the mass temperature of [...]
Due to thermal expansion with rise in temperature: (1) metallic scale reading becomes lesser than true value. (2) pendulum clock becomes fast (3) a floating body sinks a little more
24
Oct
Due to thermal expansion with rise in temperature: (1) metallic scale reading becomes lesser than true value. (2) pendulum clock becomes fast (3) a floating body sinks a little more Due to thermal expansion with rise in temperature: (1) metallic scale reading becomes lesser than true value. (2) pendulum clock becomes fast (3) a floating [...]
In the circuit shown in fig, the time constant of the two braches are equal(=T). Then if the key S is closed at the instant t=0, the time in which the current in the circuit through the battery will rise to its final value of (E/R) will be, (assume that the internal resistance of the battery and of the connecting wire are negligible)
24
Oct
In the circuit shown in fig, the time constant of the two braches are equal(=T). Then if the key S is closed at the instant t=0, the time in which the current in the circuit through the battery will rise to its final value of (E/R) will be, (assume that the internal resistance of the [...]
Tags:
(assume that the internal resistance of the battery and of the connecting wire are negligible) ,
In the circuit shown in fig ,
the time constant of the two braches are equal(=T). Then if the key S is closed at the instant t=0 ,
the time in which the current in the circuit through the battery will rise to its final value of (E/R) will be ,
In the circuit shown in figure, switch S was closed for a long time. At time t = 0, the switch is opened again. The maximum potential difference the plates of the capacitor after the switch is opened is
24
Oct
In the circuit shown in figure, switch S was closed for a long time. At time t = 0, the switch is opened again. The maximum potential difference the plates of the capacitor after the switch is opened is In the circuit shown in Figure switch S was closed for a long time. At time [...]
Two tanks A and B contain water at 30 C and 80 C, respectively: calculate the amount of water that must be taken from each tank respectively to prepare 40 kg of water at 50 C.
24
Oct
Two tanks A and B contain water at 30 C and 80 C, respectively: calculate the amount of water that must be taken from each tank respectively to prepare 40 kg of water at 50 C. respectively: calculate the amount of water that must be taken from each tank respectively to prepare 40 kg of [...]
A ball of thermal capacity 10 cal/C is heated to the temperature of furnance. It is then transferred into a vessel containing water. The water equivalent of vessel and the contents is 200 g.
24
Oct
A ball of thermal capacity 10 cal/C is heated to the temperature of furnance. It is then transferred into a vessel containing water. The water equivalent of vessel and the contents is 200 g. A ball of thermal capacity 10 cal/C is heated to the temperature of furnance. It is then transferred into a vessel [...]
A bulb of 100 W is connected in parallel to an ideal inductance of 1 H . This arrangement is connected to a 90 V battery through a switch . On pressing the switch the
24
Oct
A bulb of 100 W is connected in parallel to an ideal inductance of 1 H . This arrangement is connected to a 90 V battery through a switch . On pressing the switch the A bulb of 100 W is connected in parallel to an ideal inductance of 1 H . This arrangement is [...]
A drilling machine of 10 kW power is used to drill a bore in a small aluminium block of mass 8 kg. If 50% of power is used up in heating the machine itself or lost to the surroundings then
24
Oct
A drilling machine of 10 kW power is used to drill a bore in a small aluminium block of mass 8 kg. If 50% of power is used up in heating the machine itself or lost to the surroundings then A drilling machine of 10 kW power is used to drill a bore in a [...]