Young's modulii is of two wires A and B are in the ratio 
. 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
Text Solution
Verified by ExpertsThe correct answer is:
D
When a wire is stretched, the change in length of wire is 
, where Y is its Young's
modulus.
Here, for wires A and B,
As, it is given that, 
or 
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