Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Half part of the ice block is covered with black cloth and the rest half is covered with white cloth and then it is kept in sunlight. After some time clothes are removed to see the melted ice. Which of the following statements is correct
04
Oct
Half part of the ice block is covered with black cloth and the rest half is covered with white cloth and then it is kept in sunlight. After some time clothes are removed to see the melted ice. Which of the following statements is correct the temperature at the common wall will be thermal conductivities [...]
Two cylinders P and Q have the same length and diameter and are made of different materials having thermal conductivities in the ratio 2 : 3. These two cylinders are combined to make a cylinder. One end of P is kept at 100°C and another end of Q at 0°C . The temperature at the interface of P and Q is
04
Oct
Two cylinders P and Q have the same length and diameter and are made of different materials having thermal conductivities in the ratio 2 : 3. These two cylinders are combined to make a cylinder. One end of P is kept at 100°C and another end of Q at 0°C . The temperature at the [...]
Two identical plates of different metals are joined to form a single plate whose thickness is double the thickness of each plate. If the coefficients of conductivity of each plate are 2 and 3 respectively, then the conductivity of the composite plate will be
04
Oct
Two identical plates of different metals are joined to form a single plate whose thickness is double the thickness of each plate. If the coefficients of conductivity of each plate are 2 and 3 respectively, then the conductivity of the composite plate will be the temperature at the common wall will be thermal conductivities K [...]
The ratio of the diameters of two metallic rods of the same material is 2:1 and their lengths are in the ratio 1:4. If the temperature difference between their ends are equal, the rate of flow of heat in them will be in the ratio
04
Oct
The ratio of the diameters of two metallic rods of the same material is 2:1 and their lengths are in the ratio 1:4. If the temperature difference between their ends are equal, the rate of flow of heat in them will be in the ratio the rate of flow of heat in them will be [...]
Two walls of thickness d 1 and d 2 ,thermal conductivities K 1 and K 2 are in contact.In the steady state if the temperatures at the outer surfaces are T 1 and T 2 , the temperature at the common wall will be
04
Oct
Two walls of thickness d 1 and d 2 ,thermal conductivities K 1 and K 2 are in contact.In the steady state if the temperatures at the outer surfaces are T 1 and T 2 , the temperature at the common wall will be the temperature at the common wall [...]
Two vessels of different materials are similar in size in every respect. The same quantity of ice filled in them gets melted in 20 minutes and 30 minutes respectively. The ratio of thermal conductivities of the materials is
04
Oct
Two vessels of different materials are similar in size in every respect. The same quantity of ice filled in them gets melted in 20 minutes and 30 minutes respectively. The ratio of thermal conductivities of the materials is The rate at which the energy conducted upward is October 4, 2020 Category: Uncategorised (JEE Advanced Physics [...]
The thermal conductivity of a material in CGS system is 0.4. In steady state, the rtate of flow of heat is 10 cal/sec-cm^2. Then the thermal gradient will be…………
04
Oct
The thermal conductivity of a material in CGS system is 0.4. In steady state, the rtate of flow of heat is 10 cal/sec-cm^2. Then the thermal gradient will be………… the rtate of flow of heat is 10 cal/sec-cm^2. Then the thermal gradient will be............ The thermal conductivity of a material in CGS system is 0.4. [...]
At what rate does the top of the tube move downward because of water freezing there?
04
Oct
At what rate does the top of the tube move downward because of water freezing there? At what rate does the top of the tube move downward because of water freezing there? October 4, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The rate at which mass converted from liquid to ice at the the top of the central tube is
04
Oct
The rate at which mass converted from liquid to ice at the the top of the central tube is The rate at which mass converted from liquid to ice at the the top of the central tube is October 4, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The rate at which the energy conducted upward is
04
Oct
The rate at which the energy conducted upward is The rate at which the energy conducted upward is October 4, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,