Q27. A spring of force constant 400 N/m has an extension of 5 cm, the work done in extending it from 5 cm to 15 cm is:Physics — Oscillations and Simple Harmonic Motion — Question 27 of 102A. 16 J B. 4J C. 32 J D. 24 J Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →