NEET Physics Hookes Law and Youngs Modulus Online Test Set B

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Question 1

Question

The length of an elastic string is a metre when the longitudinal tension is 4 N and b metre when the longitudinal tension is 5 N. The length of the string in metre when the longitudinal tension is 9 N is

Answer

a – b

5b – 4a

3a – 3b

4a – 3b