JAMB Physics 2012 Objective — Question 26
Question 26 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2012 Objective paper, with the correct answer and a full explanation.
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The equation of a wave travelling in a horizontal direction is expressed as y=15sin(2π/5)(60t−x). What is its wave length?
- A. 60m
- B. 15m
- C. 5mCorrect
- D. 2m
Explanation
Comparing with y = Asin(2π/λ)(vt−x), the coefficient 2π/5 corresponds to 2π/λ, giving λ = 5m.
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