Spring-mass period T = 2π√(m/k). If mass quadrupled, T becomes:
A. Double
B. Four times
C. Half
D. Same
Answer: Option A
Solution (By JKSSB Mock Tests)
T ∝ √m. If m' = 4m, T' = √4 × T = 2T. Period doubles when mass quadruples. Memory aid: 'Spring period: T ∝ √m; 4× mass ⇒ 2× period'. Oscillations proportionality frequently tested in competitive exams.
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