A thin walled spherical shell is subjected to an internal pressure. If the radi

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A thin walled spherical shell is subjected to an internal pressure. If the radius of the shell is
increased by 1% and the thickness is reduced by 1%, with the internal pressure remaining the same,
the percentage change in the circumferential (hoop) stress is

Options:

A . 0

B . 1

C . 1.08

D . 2.02

Answer: Option D

-NA-

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