Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
The given figure shows water in a container having 2.0 mm thick walls made of a material of thermal conductivity 0.50 W/m C. The container is kept in a melting ice bath at 0 C.
25
Oct
The given figure shows water in a container having 2.0 mm thick walls made of a material of thermal conductivity 0.50 W/m C. The container is kept in a melting ice bath at 0 C. The given figure shows water in a container having 2.0 mm thick walls made of a material of thermal conductivity [...]
A slab of stone of area 3600 cm^2 and thickness 10 cm is exposed on the lower surface to steam at 100 C. A block of ice at 0 C rests on the upper surface of the slab. If in 1 h
25
Oct
A slab of stone of area 3600 cm^2 and thickness 10 cm is exposed on the lower surface to steam at 100 C. A block of ice at 0 C rests on the upper surface of the slab. If in 1 h A slab of stone of area 3600 cm^2 and thickness 10 cm is [...]
A uniform rod of thermal conductivity of 65 J/m-s C is surrounded by an insulator on its sides. One of its ends is put in a furnace, while the other end is kept exposed. If the temperature
25
Oct
A uniform rod of thermal conductivity of 65 J/m-s C is surrounded by an insulator on its sides. One of its ends is put in a furnace, while the other end is kept exposed. If the temperature A uniform rod of thermal conductivity of 65 J/m-s C is surrounded by an insulator on its sides. [...]
When the centre of earth is at a distance of 1.6 * 10^11 m from the centre of sun, the intensity of solar radiation reaching at the earth’s surface is 2.4 kW/m^2. There is a spherical
25
Oct
When the centre of earth is at a distance of 1.6 * 10^11 m from the centre of sun, the intensity of solar radiation reaching at the earth’s surface is 2.4 kW/m^2. There is a spherical the intensity of solar radiation reaching at the earth's surface is 2.4 kW/m^2. There is a spherical When the [...]
The maximum in the energy distribution spectrum of the sun is at wavelength 4753 A and its temperature is 6050 K. What will be the temperature of the star (in K) whose energy
25
Oct
The maximum in the energy distribution spectrum of the sun is at wavelength 4753 A and its temperature is 6050 K. What will be the temperature of the star (in K) whose energy The maximum in the energy distribution spectrum of the sun is at wavelength 4753 A and its temperature is 6050 K. What [...]
A calorimeter of negligible heat capacity contains 100 g waters at 40 C. The water cools to 35 C in 5 minutes. If the water is now replaced by a liquid of same volume as that of water
25
Oct
A calorimeter of negligible heat capacity contains 100 g waters at 40 C. The water cools to 35 C in 5 minutes. If the water is now replaced by a liquid of same volume as that of water A calorimeter of negligible heat capacity contains 100 g waters at 40 C. The water cools to [...]
A block having some emissivity is maintained at 500 K temperature in a surrounding of 300K temperature. It is observed that, to maintain the temperature of the block, 210 W
25
Oct
A block having some emissivity is maintained at 500 K temperature in a surrounding of 300K temperature. It is observed that, to maintain the temperature of the block, 210 W 210 W A block having some emissivity is maintained at 500 K temperature in a surrounding of 300K temperature. It is observed that to maintain [...]
A spherical black body with a radius of 12 cm placed in space radiates 450 W power at 500 K. If the radius were halved and the temperature doubled, find the power radiated
25
Oct
A spherical black body with a radius of 12 cm placed in space radiates 450 W power at 500 K. If the radius were halved and the temperature doubled, find the power radiated A spherical black body with a radius of 12 cm placed in space radiates 450 W power at 500 K. If the [...]
A rod AB of uniform cross-section consists of four sections AC, CD, DE and EB of different metals with thermal conductivities K, 0.8K, 1.2K and 1.50 K, respectively. Their lengths are
25
Oct
A rod AB of uniform cross-section consists of four sections AC, CD, DE and EB of different metals with thermal conductivities K, 0.8K, 1.2K and 1.50 K, respectively. Their lengths are 0.8K 1.2K and 1.50 K A rod AB of uniform cross-section consists of four sections AC CD DE and EB of different metals with [...]
A copper rod (initially at room temperature 20 C) of non-uniform cross-section is placed between a steam chamber at 100 C and ice water chamber at 0 C. A and B are cross sections
25
Oct
A copper rod (initially at room temperature 20 C) of non-uniform cross-section is placed between a steam chamber at 100 C and ice water chamber at 0 C. A and B are cross sections A copper rod (initially at room temperature 20 C) of non-uniform cross-section is placed between a steam chamber at 100 C [...]