Question 5
Simple Harmonic MotionA simple pendulum of length 0.4m has a period of 2s. What is the period a similar pendulum of length 0.8m at the same place?
- A.8s.
- B.4s.
- C.2√2s.
- D.√2s.
Show the answer and explanation
Answer: C (2√2s.)
Explanation
T ∝ √L. Doubling the length multiplies the period by √2: T = 2√2 s.