Two loudspeakers on elevated platforms are at opposite ends of a field. Each broadcasts equally in all directions. The sound intensity level at a point halfway between the loudspeakers is 70 dB. a. What is the sound intensity level at a point one-quarter of the way from one speaker to the other along the line joining them?   b. if the observer moves to a point that is one-quarter of the way from one speaker to the other along the line joining them, what is the intensity of the farther speaker? c. What is the sound intensity level at the new position?

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A: Here is your solution -

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Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.