The wires `A` and `B` shown in Fig. are made of the same material and have radii `r_(A)` and `r_(B)`, respectively. The block between them has a mass `m`. When the force `F` is `mg//3`, one of the wires breaks. Then

The wires A and B shown in the figur, are made of the same material and have radii r_(A) and r_(B) . A block is mass m kg is find between them : If the force F is mg//3 , one of the wires breaks.

Two wires of same material and same length have radii r_1 and r_2 respectively. Compare their resistances.

A composite wire of length 2L is made by joining two different wires A and B having the same length, made of the same material but of different radii r and 2r respectively . The composite wire is vibrating at such a frequency, that the junction of the two wires form a node. If the number of antinodes in the wire A is p and that in the wire B is q, then the ratio p : q is

Two wires A and B are made of same material and are having same weights. The strain in A will be more when

Two wires A and B are made of same material and are having same weights. The strain in A will be more when

Two wires of same material and length have the radii of their cross sections as r and 2r, respectively. The ratio of their resistances