A force F is applied along a rod of tran...

A force F is applied along a rod of transverse Sectional area A. The normal stress to a section PO inclined to transverse section is

A

`(Fsintheta)/(A)`

B

`(F)/(A)costheta`

C

`(F)/(2A)sin2theta`

D

`(F)/(A)cos^2theta`

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