Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
The top of insulated cylindrical container is covered by a disc having emissivity 0.6 and thickness 1 cm. The temperature is maintained by circulating oil as shown in figure. If temperature
25
Oct
The top of insulated cylindrical container is covered by a disc having emissivity 0.6 and thickness 1 cm. The temperature is maintained by circulating oil as shown in figure. If temperature The top of insulated cylindrical container is covered by a disc having emissivity 0.6 and thickness 1 cm. The temperature is maintained by circulating [...]
Power radiated by a black body is P0 and the wavelength corresponding to maximum energy is around lemda 0. On changing the temperature of the black body, it was observed
25
Oct
Power radiated by a black body is P0 and the wavelength corresponding to maximum energy is around lemda 0. On changing the temperature of the black body, it was observed it was observed Power radiated by a black body is P0 and the wavelength corresponding to maximum energy is around lemda 0. On changing the [...]
A refrigerator is thermally equivalent to a box of cork board 90 mm thick and 6 m^2 in inner surface area, the thermal conductivity of cork being 0.05 W/mK. The motor of the
25
Oct
A refrigerator is thermally equivalent to a box of cork board 90 mm thick and 6 m^2 in inner surface area, the thermal conductivity of cork being 0.05 W/mK. The motor of the A refrigerator is thermally equivalent to a box of cork board 90 mm thick and 6 m^2 in inner surface area the [...]
A rod of length l and cross-sectional area A has a variable conductivity given by K = alpha T, where alpha is a positive constant and T is temperature in kelvin. Two ends of the rod
25
Oct
A rod of length l and cross-sectional area A has a variable conductivity given by K = alpha T, where alpha is a positive constant and T is temperature in kelvin. Two ends of the rod A rod of length l and cross-sectional area A has a variable conductivity given by K = alpha T [...]
As shown in figure, AB is a rod of length 30 cm and area of cross-section 1.0 cm^2 and thermal conductivity 336 SI units. The ends A and B are maintained at temperatures 20 C and
25
Oct
As shown in figure, AB is a rod of length 30 cm and area of cross-section 1.0 cm^2 and thermal conductivity 336 SI units. The ends A and B are maintained at temperatures 20 C and AB is a rod of length 30 cm and area of cross-section 1.0 cm^2 and thermal conductivity 336 SI [...]
There are two thin spheres A and B of the same material and same thickness. They behave like black bodies. Radius of A is double that of B and both have same temperature T.
25
Oct
There are two thin spheres A and B of the same material and same thickness. They behave like black bodies. Radius of A is double that of B and both have same temperature T. There are two thin spheres A and B of the same material and same thickness. They behave like black bodies. Radius [...]
There are two spherical balls A and B of the same material with same surface, but the diameter of A is half that of B. If A and B are heated to the same temperature and then
25
Oct
There are two spherical balls A and B of the same material with same surface, but the diameter of A is half that of B. If A and B are heated to the same temperature and then but the diameter of A is half that of B. If A and B are heated to the [...]
If a metallic sphere gets cooled from 62 C to 50 C in 10 minutes and in the next 10 minutes gets cooled to 42 C, then the temperature of the surroundings is
25
Oct
If a metallic sphere gets cooled from 62 C to 50 C in 10 minutes and in the next 10 minutes gets cooled to 42 C, then the temperature of the surroundings is If a metallic sphere gets cooled from 62 C to 50 C in 10 minutes and in the next 10 minutes gets [...]
A liquid cools down from 70 C to 60 C in 5 minutes. The time taken to cool it from 60 C to 50 C will be
25
Oct
A liquid cools down from 70 C to 60 C in 5 minutes. The time taken to cool it from 60 C to 50 C will be A liquid cools down from 70 C to 60 C in 5 minutes. The time taken to cool it from 60 C to 50 C will be October [...]
Liquid is filled in a vessel which is kept in a room with temperature 20 C. When the temperature of the liquid is 80 C, then it loses heat at the rate of 60 cal/sec. What will
25
Oct
Liquid is filled in a vessel which is kept in a room with temperature 20 C. When the temperature of the liquid is 80 C, then it loses heat at the rate of 60 cal/sec. What will Liquid is filled in a vessel which is kept in a room with temperature 20 C. When the [...]