Q150. A spring 4m long resonates in Four segments (nodes at both ends). The frequency of the system is 20 Hz, then speed of the wave in the spring is _______:Physics — NUST Mock 1 — Question 150 of 200A. 40 m/secB. 40 cm/secC. 80 m/secD. 100 m/secPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →