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Question


A closely coiled
helical spring is acted upon by an axial force. The maximum shear
stress developed in the spring is `tau`. The half of the length of the
spring if cut off and the remaining spring is acted upon by the same
axial force. The maximum shear stress in the spring in new condition
will be


Options:
A .  `tau`/2
B .  `tau`
C .  2`tau`
D .  4 `tau`
Answer: Option B



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