Question

# Mention two properties of a wave; the property which varies and the other which remains constant when a wave passes from one medium to another.Property which varies: Speed (or velocity) and Wavelength Property which remains constant: frequencyProperty which varies: Speed (or velocity) and frequency Property which remains constant: WavelengthProperty which varies: Wavelength Property which remains constant: Speed or velocity and frequencyProperty which varies: Wavelength and frequency Property which remains constant: Speed or velocity

Solution

## The correct option is A Property which varies: Speed (or velocity) and Wavelength Property which remains constant: frequencyv = f * λ. Now, v and λ vary when a wave moves from one media to another. But frequency remains constant as it is the characteristic of the source which produces the sound.

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