JEE Main 2024 Physics question
An elastic spring under tension of 3 N has a length a. Its length is b under tension 2 N. For its length (3a – 2b), the value of tension will be N.
Answer: 5
Solution
T = k(ℓ − ℓ₀), so T(3a − 2b) = 3T(a) − 2T(b) = 9 − 4 = 5 N.