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JAMB Physics 1989 Question 21

Question 21

Sound

When the tension in a sonometer wire is doubled, the ratio of the new frequency to the initial frequency is

  1. A.1/√2
  2. B.½
  3. C.√2
  4. D.2
Show the answer and explanation

Answer: C (√2)

Explanation

f ∝ √T, so doubling the tension multiplies the frequency by √2.