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A certain mass of a solid exists at its melting temperature of 20 C. When a heat Q is added 3/4 of the material melts. When an additional Q amount of heat is added the material
24
Oct
A certain mass of a solid exists at its melting temperature of 20 C. When a heat Q is added 3/4 of the material melts. When an additional Q amount of heat is added the material A certain mass of a solid exists at its melting temperature of 20 C. When a heat Q is [...]
A lead ball at 25 C is dropped from a height of 2 km. It is heated due to air resistance and it is assumed that all of its kinetics energy is used in increasing the temperature of ball.
24
Oct
A lead ball at 25 C is dropped from a height of 2 km. It is heated due to air resistance and it is assumed that all of its kinetics energy is used in increasing the temperature of ball. A lead ball at 25 C is dropped from a height of 2 km. It is [...]
Figure shows two coaxial coils M and N. Column I is regarding some operations done with coil M and column II about induced current in coil N.
24
Oct
Figure shows two coaxial coils M and N. Column I is regarding some operations done with coil M and column II about induced current in coil N. Figure shows two coaxial coils M and N. Column I is regarding some operations done with coil M and column II about induced current in coil N. October [...]
A fine steel wire of length 4m is fixed rigidly in a heavy brass frame as shown in figure. It is just taut at 20 C. Find the the tensile stress developed in steel wire (in * 10^6 Nm^-2) if whole system is heated
24
Oct
A fine steel wire of length 4m is fixed rigidly in a heavy brass frame as shown in figure. It is just taut at 20 C. Find the the tensile stress developed in steel wire (in * 10^6 Nm^-2) if whole system is heated A cylindrical beer can made up of aluminium contains 500 cm^3 [...]
The current growth in two L- R circuits ( b) and (c) is as shown in fig. (a) . Let L1 , L2, R1 and R2 be the corresponding values in two circuits. Then
24
Oct
The current growth in two L- R circuits ( b) and (c) is as shown in fig. (a) . Let L1 , L2, R1 and R2 be the corresponding values in two circuits. Then l2 R1 and R2 be the corresponding values in two circuits. Then The current growth in two L- R circuits ( [...]
The temperature of a body rises by 44 C when a certain amount of heat is given to it. The same heat when supplied to 22g of ice at -8C, raises its temperature by 16 C. Find the water equivalent
24
Oct
The temperature of a body rises by 44 C when a certain amount of heat is given to it. The same heat when supplied to 22g of ice at -8C, raises its temperature by 16 C. Find the water equivalent raises its temperature by 16 C. Find the water equivalent The temperature of a body [...]
A clock pendulum made of invar has a period of 2 s at 20 C. If the clock is used in a climate where average temperature is 40 C, what correction (in seconds) may be necessary at
24
Oct
A clock pendulum made of invar has a period of 2 s at 20 C. If the clock is used in a climate where average temperature is 40 C, what correction (in seconds) may be necessary at A clock pendulum made of invar has a period of 2 s at 20 C. If the clock [...]
In the circuit shown in figure , circuit is closed at time t = 0. At time t = In (2) second :
24
Oct
In the circuit shown in figure , circuit is closed at time t = 0. At time t = In (2) second : circuit is closed at time t = 0. At time t = In (2) second : In the circuit shown in Figure October 24, 2020 Category: Uncategorised (JEE Advanced Physics by BM [...]
A rod has variable co-efficient of linear expansion alpha = x / 5000. If length of the rod is 1 m. Determine increase in length of the rod in (cm) on increasing temperature of the rod by
24
Oct
A rod has variable co-efficient of linear expansion alpha = x / 5000. If length of the rod is 1 m. Determine increase in length of the rod in (cm) on increasing temperature of the rod by A rod has variable co-efficient of linear expansion alpha = x / 5000. If length of the rod [...]
The switches in following figures are closed at t = 0 and re- open after a long time t = t0. Then
24
Oct
The switches in following figures are closed at t = 0 and re- open after a long time t = t0. Then The switches in following figures are closed at t = 0 and re- open after a long time t = t0. Then October 24, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]