Start learning →

The wavelength λ, frequency ν, and speed v of a wave are related by:

Av = λ / ν
Bv = λ × ν
Cv = λ + ν
Dv = ν / λ
Answer & Solution
Correct answer: B. v = λ × ν
In one time period T, the wave travels one wavelength λ. So v = λ/T. Since frequency ν = 1/T, we get v = λ × ν. This single equation links the spatial property (wavelength) and temporal property (frequency) via the wave's propagation speed in the medium.
Practise this question with Quill — CBSE Class 9 →

Keep practising Sound

Browse all Sound questions for CBSE Class 9, or explore more Science topics.

Start a Sound lesson →
Related questions
True or false: soundCompression or rarefaction?Sound — true or false?CLASS9 · Physics · Sound — Spot the ErrorWhich two animals are known to use natural echolocation to navigate and hunt?SONAR (SOund Navigation And Ranging) uses:Reverberation refers to:The audible range of frequency for humans is: