Velocity V, frequency f and wavelength of a wave are related as
AV = f times wavelength
BV = f plus wavelength
CV = f divided by wavelength
DV = wavelength divided by f
Answer & Solution
Correct answer: A. V = f times wavelength
1. The chapter gives the basic wave equation.
2. Velocity equals frequency multiplied by wavelength.
3. So V = f * lambda.
4. Hence option A is correct.
_Source: Selina Concise Physics Class 9, Ch 8 Sound (Mistral OCR'd PDF), section on V = f times lambda_
Related questions
In which of the following media does sound travel the fastest?Sound travels fastest through which of the following media?An observer is 660 m away from a thundercloud. The sound of thunder reaches him after (V =A sound wave has wavelength 0.66 m in air where speed of sound is 330 m/s. Its frequency iThe wavelength of a sound wave of frequency 660 Hz travelling at 330 m/s isUltrasonic waves are used in industry toUltrasonic waves are used in medicine forA bat emits ultrasonic pulses at 50 kHz to navigate. This method is called