Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A liquid of density 0.85 g/cm^3 flows through a calorimeter at the rate of 8.0 cm^3/s. Heat is added by means of a 250 W electric heating coil and a temperature difference of 15 C is established
24
Oct
A liquid of density 0.85 g/cm^3 flows through a calorimeter at the rate of 8.0 cm^3/s. Heat is added by means of a 250 W electric heating coil and a temperature difference of 15 C is established A liquid of density 0.85 g/cm^3 flows through a calorimeter at the rate of 8.0 cm^3/s. Heat is [...]
An iron rocket fragment initially at -100 C enters the earth’s atmosphere almost horizontally and quickly fuses completely in atmospheric friction. Specific heat of iron is 0.11 kcal/kg C its melting point is 1535
24
Oct
An iron rocket fragment initially at -100 C enters the earth’s atmosphere almost horizontally and quickly fuses completely in atmospheric friction. Specific heat of iron is 0.11 kcal/kg C its melting point is 1535 A wire is made by attaching two segments together end to end. One segment is made of aluminium and the other [...]
A mass m of lead shot is placed at the bottom of a vertical cardboard cylinder that is 1.5 m long and closed at both ends. The cylinder is suddenly inverted so that the shot falls 1.5 m.
24
Oct
A mass m of lead shot is placed at the bottom of a vertical cardboard cylinder that is 1.5 m long and closed at both ends. The cylinder is suddenly inverted so that the shot falls 1.5 m. A mass m of lead shot is placed at the bottom of a vertical cardboard cylinder that [...]
A brass wire 2 m long at 27 C is held taut with negligible tension between two rigid supports. If the wire is cooled to a temperature of -33 C, then the tension developed in the wire, its diameter
24
Oct
A brass wire 2 m long at 27 C is held taut with negligible tension between two rigid supports. If the wire is cooled to a temperature of -33 C, then the tension developed in the wire, its diameter A brass wire 2 m long at 27 C is held taut with negligible tension between [...]
An incandescent lamp consuming P = 54 W is immersed into a transparent calorimeter containing V = 10^3 of water. In 420 s the water is heated by 4 C. The percentage of the energy
24
Oct
An incandescent lamp consuming P = 54 W is immersed into a transparent calorimeter containing V = 10^3 of water. In 420 s the water is heated by 4 C. The percentage of the energy An incandescent lamp consuming P = 54 W is immersed into a transparent calorimeter containing V = 10^3 of water. [...]
A block of wood is floating in water at 0 C. The temperature of water is slowly raised from 0 C to 10 C. With the rise in temperature the volume of block V above water level will
24
Oct
A block of wood is floating in water at 0 C. The temperature of water is slowly raised from 0 C to 10 C. With the rise in temperature the volume of block V above water level will A block of wood is floating in water at 0 C. The temperature of water is slowly [...]
Heat is required to change 1 kg of ice at -20 C into steam. Q1 is the heat needed to warm the ice from -20 c to 0 c, Q2 is the heat needed to melt the ice, Q3 is the heat needed to warm the water
23
Oct
Heat is required to change 1 kg of ice at -20 C into steam. Q1 is the heat needed to warm the ice from -20 c to 0 c, Q2 is the heat needed to melt the ice, Q3 is the heat needed to warm the water Heat is required to change 1 kg of [...]
A wire is made by attaching two segments together end to end. One segment is made of aluminium and the other is steel. The effective coefficient of linear expansion of the two segment
23
Oct
A wire is made by attaching two segments together end to end. One segment is made of aluminium and the other is steel. The effective coefficient of linear expansion of the two segment A wire is made by attaching two segments together end to end. One segment is made of aluminium and the other is [...]
Two elastic rods are joined between fixed supports as shown in the figure. Condition for no change in the length of individual rods with the increase of temperature (alpha 1, alpha 2 = linear expansion coefficient,
23
Oct
Two elastic rods are joined between fixed supports as shown in the figure. Condition for no change in the length of individual rods with the increase of temperature (alpha 1, alpha 2 = linear expansion coefficient, alpha 2 = linear expansion coefficient Two elastic rods are joined between fixed supports as shown in the figure. [...]
If earth suddenly stops rotating about its own axis, the increase in its temperature will be (Here, R = radius of the Earth, omega = angular velocity of rotation of the Earth, J = mechanical
23
Oct
If earth suddenly stops rotating about its own axis, the increase in its temperature will be (Here, R = radius of the Earth, omega = angular velocity of rotation of the Earth, J = mechanical If earth suddenly stops rotating about its own axis J = mechanical omega = angular velocity of rotation of the [...]