A hollow cylinder of inner radius 4 cm and outer radius is 5cm and a solid cylinder of radius 3 cm are under the same load. They are of the same material and of same length, Find the ratio of their clongations.

A hollow cylinder of inner radius 4 cm and outer radius is 5cm and a s

1.	A hollow cylinder of inner radius 4 cm and outer radius is 5cm and a solid cylinder of radius 3 cm are under the same load. They are of the same material and of same length, Find the ratio of their clongations.
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