A person driving at v = 17 m/s crosses the line connecting two radio transmitter

Question

A person driving at v = 17 m/s crosses the line connecting two radio transmitters at right angles, as shown in the figure (d1 = 540 m and d2 = 180 m). The transmitters emit identical signals in phase with each other, which the driver receives on the car radio. When the car is at point A the radio picks up a maximum net signal.

(a) What is the longest possible wavelength of the radio waves?
m

(b) How long after the car passes point A does the radio experience a minimum in the net signal? Assume that the wavelength has the value found in part (a).

Explanation / Answer

part A) d1 - d2 = 540 - 180 = 360m=m*lambda

for  the longest possible wavelength of the radio waves,m=1

lambda=360m

Part b) : Part b i will do tomorrow as my net connection has been cut down now.

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