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Physics Question on work, energy and power

When a spring is stretched by x amount, the potential energy stored in it is E. When the spring is stretched by another x amount, the potential energy stored in the spring becomes E'. Then E′E\frac{E'}{E} is,

A

1

B

1/2

C

1/4

D

4

Answer

4

Explanation

Solution

The correct option is (D): 4