Two identical rods are arranged as shown. D is the midpoint of rod BC. Find the heat transfer rate through rods AD (given- L/KA = 10 k/W)

Two identical thin rods are welded as shown in the fig. B is midpoint of rod CD. Now the system is cut into two parts through its center of mass M. The part AM weights 4 kg. Find the mass of the other part.

Three identical rods are joined at point O as shown in the figure. In the steady state, fid the ratio of thermal current through rod AO and OC. ltBrgt

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 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 similar rods are joined as shown in figure. Then temperature of junction is (assume no heat loss through lateral surface of rod and temperatures at the ends are shown in steady state )

Two rods (one semi-circular and other straight) of same material and of same cross-sectional area are joined as shown in the figure. The point A and B are maintained at different temperature. Find the ratio of the heat transferred through a cross-section of a semi-circular rod to the heat transferred through a cross section of the straight rod in a given time.

Two identical rods each of mass M and length L are kept according to figure. Find the moment of inertia of rods about an axis passing through O and perpendicular to the plane of rods.