Two identical rectangular rods of metal are welded as shown in figure `(1)` and `20 J` of heat flows through the rods in `1 min`. How long would it take for `20 J` heat to flow through the rods if they are welded as shown in figure `(2)`

Two identical square rods of metal are welded end to end as shown in fig (1) . 20 cal of heat flows through it in 4min . If the rods are welded as shown in fig. (2) , the same amount of heat will flow through the rods in

Two identical square rods of metal are welded end to end as shown in figure (a). Assume that 10 cal of heat flows through thr rod in 2min . Now the rods are welded as shown in figure (b). The time it would take for 10 cal to flow through the rods now, is

Two identical square rods of metal are welded end to end as shown in figure (a). Assume that 10 cal of heat flows through thr rod in 2min . Now the rods are welded as shown in figure (b). The time it would take for 10 cal to flow through the rods now, is

Two identical square rods of metal are welded end to end as shown in figure (i), 20 calories of heat flows through it in 4 minutes. If the rods are welded as shown in figure (ii), the same amount of heat will flow through the rods in

Two identical square rods of metal are welded end to end as shown in figure (i), 20 calories of heat flows through it in 4 minutes. If the rods are welded as shown in figure (ii), the same amount of heat will flow through the rods in

Two identical square rods of metal are welded end to end as shown in figure (i), 20 calories of heat flows through it in 4 minutes. If the rods are welded as shown in figure (ii), the same amount of heat will flow through the rods in