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A force of 100 N increases the length of...

A force of 100 N increases the length of a given wiere by 0.1 mm. Then the force required to increase its length by 0.25 mm is

A

50 N

B

150 N

C

250 N

D

500 N

Text Solution

Verified by Experts

The correct Answer is:
C
`(F_(2))/(F_(1))=(l_(2))/(l_(1))=(0.25)/(0.10)=(5)/(2)`
`F_(2)=(5)/(2) xx F_(1)`
`=(5)/(2)xx100 = 250N`
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