The volume control on a surround sound amplifier is adjusted so the sound intensity level at the listining position increase from 22 to 66 dB. What is the raiton of the final sound intensity to the original sound intensity?

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A: The solution is given below

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Q: The phase difference between two identical sinusoidal waves propagating in the same direction is Tt…

A: Answer:- perfectly constructive  The phase difference between two identical sinusoidal waves…

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A: Recall β=loudness=10dBlogI/I0 I=P/A

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A: Using the expression for sound intensity, β=10logII0

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A: Sound loudness due to 10 speakers = 120 dB Using the formula for loudness of sound : Loudness =…

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Q: Two identical speakers are 3.50 m and 5.20 m from a listener. What is the lowest frequency (n = 1)…

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Q: Two identical speakers are 3.50 m and 5.20 m from a listener. What is the lowest frequency (n = 0)…

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Q: Two waves of same pitch have amplitude in the ratio 1:3. What will be the ratio of their (i)…

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Electromagnetic Waves

Electromagnetic waves are waves that consist of magnetic field and electric field components perpendicular to each other. These field components are also perpendicular to the direction of propagation of the wave.