A sound wave travels at a speed of 339 m s-. If its
wavelength is 1.5 cm, what is the frequency of the wave?
Will it be audible?
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Durga Puja jis name is connected with our emotion but this year Durga Puja will not be the same as in the earlier years how are you feeling? will this kind of celebration make your unhappy or teach you to cope with the crises give me a paragraph in paragraph
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