Question

If reference sound pressure P₀ is 2 x 10¯⁵ N/m², a sound pressure of 90 dB is equal to

a.

0.632 N/m²

b.

0.707 N/m²

c.

0.835 N/m²

d.

0.925 N/m²

Answer: (a).0.632 N/m²

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Q. If reference sound pressure P₀ is 2 x 10¯⁵ N/m², a sound pressure of 90 dB is equal to

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