## Question

### Solution

Correct option is

2k

For a force F, the extension x in a spring of force constant k is given by

F = kx

Now extension is proportional to the length of the spring. When the spring is cut into two equal halves, the extension x of each half, for a force F will be x = x/2. If k is the force constant of each half, we have

Comparing (i) and (ii) we get

#### SIMILAR QUESTIONS

Q1

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Q2

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Q3

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Q4

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Q5

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Q6

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Q7

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Q8

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Q9

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Q10

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