The length of an elastic string is a meter when the longitudinal tension is 4 N and b…
Physics · JEE Advanced · NTA Exams — Properties of Solids and Liquids
The length of an elastic string is a meter when the longitudinal tension is 4 N and b metre when the tension is 5 N. The length of the string (in metre) when the longitudinal tension is 9 N is
- a – b
- 5b – 4a
- 2b – a/2
- 4a – 3b
Answer
(B) 5b – 4a
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