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In the given diagram, when a weight of 2...

In the given diagram, when a weight of 200 g is hung from the spring, its length is 15 cm.
When a weight of 250 g is hung from it, its length is 17 cm. What is the length of the spring when there is no weight hanging from it?

A

2 cm

B

4 cm

C

5 cm

D

7 cm

Text Solution

Verified by Experts

The correct Answer is:
D
For the given spring, extension in the spring increases with increase in mass hung from it.
So, `(200)/(250) =(15-l)/(17-l) rArr 68 - 4l = 75 - 5l or l = 7 cm `
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