Physicsmedium · Past Paper
The ratio of the lengths of two pendulums is 1:4. The ratio of their time periods is:
A1:2
B1:4
C2:1
D1:16
✓ Correct Answer: A — 1:2
Time period T ∝ √L. So T1/T2 = √(L1/L2) = √(1/4) = 1/2.
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