Calculating Distance from Sound and Light Speeds

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The discussion revolves around calculating the maximum distance between a celebrity at a press conference and a television viewer based on sound and light speeds. The viewer is 3.3 m from the TV, while a reporter is 5.3 m from the microphone, with both hearing the sound simultaneously. The speed of sound is given as 343 m/s, leading to a focus on the time it takes for sound to travel a 2 m difference between the two listeners. The conversation includes deriving equations for sound travel times and the relationship between sound and electromagnetic wave speeds. Ultimately, the calculations aim to clarify the distance discrepancy and the time it takes for light to cover that distance.
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A celebrity holds a press conference, which is televised live. A television viewer hears the sound picked up by a microphone directly in front of the celebrity. This viewer is seated 3.3 m from the television set. A reporter at the press conference is located 5.3 m from the microphone and hears the words directly at the very same instant that the television viewer hears them. Using a value of 343 m/s for the speed of sound, determine the maximum distance between the television viewer and the celebrity.

I have derived the equations for each situation. I have t1= s1/v for the time for the sound to reach the tv viewer, t2=s2/v for the time for the sound to reach the reporter and t=s/c for the time it takes the EM wave to reach the tv set, but so far, I am not sure how to combine these equatios. I thought that t2 should equal t1 since it says the sounds hits them at the same instant, but this doesn't seem to work. Can anyone help me out with this one?
 
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t1 + t = t2

MP
 
kris24tf said:
A celebrity holds a press conference, which is televised live. A television viewer hears the sound picked up by a microphone directly in front of the celebrity. This viewer is seated 3.3 m from the television set. A reporter at the press conference is located 5.3 m from the microphone and hears the words directly at the very same instant that the television viewer hears them. Using a value of 343 m/s for the speed of sound, determine the maximum distance between the television viewer and the celebrity.
The difference in sound paths is two metres. How long does it take for the sound to travel 2 m.? What distance would an EM signal or light travel in that time?

AM
 
Thanks AM, that made it very easy.
 

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