Question
Asked Dec 21, 2019
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Q/ The wavelength of a wave in a medium increases as a result of which of the following changes in parameters? 

A. an increase in frequency 

B. a decrease in frequency 

C.an increase in speed 

D. a decrease in speed 

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Expert Answer

Step 1
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The formula of wavelength: •1= Wavelength •v = Speed of the wave •f = Frequency of the wave

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Step 2
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According to the formula, 1. The frequency is inversely proportional to the wavelength, therefore, to increase the wavelength there should be a decrease in the frequency. 2. The speed is directly proportional to the wavelength, therefore, to increase the wavelength there should be an increase in the speed.

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