Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Four identical rods of same material are joined end to end to form a square. If the temperature difference between the ends of a diagonal is 100 C, then the temperature difference
25
Oct
Four identical rods of same material are joined end to end to form a square. If the temperature difference between the ends of a diagonal is 100 C, then the temperature difference Four identical rods of same material are joined end to end to form a square. If the temperature difference between the ends of [...]
Three rods of the same dimension have thermal conductivities 3K, 2K and K. They are arranged as shown in figure given below, with their ends at 100 C, 50 C and 20 c. The temperature
25
Oct
Three rods of the same dimension have thermal conductivities 3K, 2K and K. They are arranged as shown in figure given below, with their ends at 100 C, 50 C and 20 c. The temperature 2K and K. They are arranged as shown in figure given below 50 C and 20 c. The temperature Three [...]
In a steady state of thermal conduction, temperature of the ends A and B of a 20 cm long rod are 100 c and 0 C, respectively. What will be the temperature of the rod at a point
25
Oct
In a steady state of thermal conduction, temperature of the ends A and B of a 20 cm long rod are 100 c and 0 C, respectively. What will be the temperature of the rod at a point In a steady state of thermal conduction respectively. What will be the temperature of the rod at [...]
A metallic rod of length 2 m has cross-sectional area 2A and A as shown in figure. The ends are maintained at temperatures 100 C and 70 C. The temperature at middle point C is
25
Oct
A metallic rod of length 2 m has cross-sectional area 2A and A as shown in figure. The ends are maintained at temperatures 100 C and 70 C. The temperature at middle point C is A metallic rod of length 2 m has cross-sectional area 2A and A as shown in figure. The ends are [...]
Two spheres of different materials one with double the radius and one-fourth wall thickness of the other, are filled with ice. If the time taken for melting complete ice in the larger
25
Oct
Two spheres of different materials one with double the radius and one-fourth wall thickness of the other, are filled with ice. If the time taken for melting complete ice in the larger are filled with ice. If the time taken for melting complete ice in the larger Two spheres of different materials one with double [...]
The ends of two rods of different materials with their thermal conductivities, radii of cross-sections and lengths all are in the ratio 1 : 2 are maintained at the same temperature difference.
25
Oct
The ends of two rods of different materials with their thermal conductivities, radii of cross-sections and lengths all are in the ratio 1 : 2 are maintained at the same temperature difference. radii of cross-sections and lengths all are in the ratio 1 : 2 are maintained at the same temperature difference. The ends of [...]
The coefficients of thermal conductivity of copper, mercury and glass are respectively Kc, Km and Kg such that Kc > Km > kg. If the same quantity of heat is to flow per second
25
Oct
The coefficients of thermal conductivity of copper, mercury and glass are respectively Kc, Km and Kg such that Kc > Km > kg. If the same quantity of heat is to flow per second Km and Kg such that Kc > Km > kg. If the same quantity of heat is to flow per second [...]
Two rods of same length and material transfer a given amount of heat in 12 seconds, when they are joined end to end. But when they are joined along their lengths, then they will
25
Oct
Two rods of same length and material transfer a given amount of heat in 12 seconds, when they are joined end to end. But when they are joined along their lengths, then they will then they will Two rods of same length and material transfer a given amount of heat in 12 seconds when they [...]
Two rectangular blocks A and B of different metals have same length and same area of cross-section. They are kept in such a way that their cross-sections touch each other. The temperature
25
Oct
Two rectangular blocks A and B of different metals have same length and same area of cross-section. They are kept in such a way that their cross-sections touch each other. The temperature Two rectangular blocks A and B of different metals have same length and same area of cross-section. They are kept in such a [...]
Heat is flowing through a conductor of length l from x = 0 to x = l. If its thermal resistance per unit length is uniform, which of the following graphs is correct ?
25
Oct
Heat is flowing through a conductor of length l from x = 0 to x = l. If its thermal resistance per unit length is uniform, which of the following graphs is correct ? Heat is flowing through a conductor of length l from x = 0 to x = l. If its thermal resistance [...]