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b. What would be the velocity of a wave with frequency of 20 Hz and wavelength of 20 m? Mention if the frequency of the sound will be audible here? |
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Answer» ong>Step-by-step explanation: Given : Frequency of wave 20 Hz Wavelength = 20 m To find: Velocity of the wave Concept: Velocity is given be the product of the frequency and wavelength of the wave. V = 1 * where is the wavelength and U is the frequency Any wave is audible if it RANGES between 20 Hz and 20,000 Hz. Calculation: Velocity = 1 x u => V = 20 x 20 => V = 400 m/s Sound will be audible SINCE it falls in the range of 20 Hz and 20000 Hz. |
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