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Simran Bhatia Grade: 11
        Calculate the bulk modulus of air from the following data about a sound wave of wavelength 35 cm travelling in air. The pressure at a point varies between (1.0 × 106 ± 14) Pa and the particles of the air vibrate in simple harmonic motion of amplitude 5.5 × 10-6 m. 
3 years ago

Answers : (1)

Aditi Chauhan
askIITians Faculty
396 Points
										Sol. We know that,

Bulk modulus B = ∆p/(∆V/V) = p base λ/2πs base 0
Where P base 0 = pressure amplitude ⇒ P base 0 = 1.0 × 10^5
S base 0 = displacement amplitude ⇒ S base 0 = 5.5 × 10^–6 m
3 years ago
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