A sound wave having frequency of 300 Hz is travelling in an unknown medium. Its wavelength is not known. It travels a distance equal to 150 times its wavelength in time t. The value of t is:

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Q: 11 (CDS-II/2024)
A sound wave having frequency of 300 Hz is travelling in an unknown medium. Its wavelength is not known. It travels a distance equal to 150 times its wavelength in time t. The value of t is:

question_subject: 

Science

question_exam: 

CDS-II

Using the relationship of wave speed v = frequency (f) x wavelength (λ), the distance travelled in time t is v x t = 150 x λ. Solving this with f = 300 Hz gives t = 1 s.