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Q: When sound wave is refracted from air to water what will remain unchanged 1 Frequency 2 Wave length 3 Wave Velocity 4 Both Wave length and velocity?

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When light is refracted, it changes direction as well as its velocity. However, it doesn’t change its wavelength and frequency

the velocity of a wave is given by frequency*its wavelength

velocity=frequency×wavelength therefore wavelength= velocity ÷ frequency

Wavelength = Velocity / Frequency So, Velocity = Wavelength * Frequency

velocity=lambda*frequency Therefore lambda=velocity/frequency

Frequency = Velocity divided by wavelength. So if frequency is doubled that means velocity is doubled but the wavelength is halved. You can see this by keeping wavelength a constant : If Frequency =1 and Wavelength= 1 1= Velocity/1 Velocity=1 If Frequency =2 and Wavelength= 1 2= Velocity/1 Velocity =2 OR keeping Velocity constant: If Frequency =1 and Velocity= 1 1= 1/Wavelength Wavelength =1 If Frequency =2 and Velocity= 1 2= 1/Wavelength Wavelength=1/2

velocity = frequency x wavelength

velocity = frequency / wavelength, I believe.

velocity cause Velocity= wavelength X frequency

The velocity of a wave is the product of frequency and wavelength,such that: V=fλ

Velocity equals frequency times wavelength. If frequency is constant, velocity is proportional to wavelength; one increases at the same rate as the other.

Velocity/wavelength=frequency

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