Derive newton's formula for the velocity of longitudinal waves in an elastic medium and comment on the value obtained by the formula.How did Laplacecorrect newton's formula?Also discuss the effect of density, pressure and temperature on velocity of sound
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the song wavelength of visible light is between 4000 to 8000 mm gmrt is used for radio waves. X ray telescope is named after Subramanyam the first scientist to use telescope was died
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