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Two identical loudspeakers are placed on...

Two identical loudspeakers are placed on a line at distance `4m` and `6m` from a microphone lying on the line joining them. The output of each speaker at the microphone is `2mW`. If the two speakers are connected in series and excited by the same oscillator and they vibrate in phase with each other, the resultant ouput of the microphone will be
(frequency of oscillator `=660 Hz` and speed of sound `=330 m//s`)

A

zero

B

`2 mW`

C

`4 mW`

D

`8 mW`

Text Solution

AI Generated Solution

To solve the problem, we need to find the resultant output of the microphone when two identical loudspeakers are connected in series and vibrate in phase. Here are the steps to arrive at the solution: ### Step 1: Calculate the Wavelength (λ) The wavelength can be calculated using the formula: \[ \lambda = \frac{v}{f} \] where: ...
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