JEE Main 20198 Apr, Evening shiftPhysicsMediumProperties of Solids and Liquids184× since 2002
Young's moduli of two wires A and B are in the
ratio 7 : 4. Wire A is 2 m long and has radius R.
Wire B is 1.5 m long and has radius 2 mm. If
the two wires stretch by the same length for a
given load, then the value of R is close to :-