![In Fig. 35 - 38, sources A and B emit long - range radio waves of wavelength 400 m, with the phase of the emission from A ahead of that from source In Fig. 35 - 38, sources A and B emit long - range radio waves of wavelength 400 m, with the phase of the emission from A ahead of that from source](https://d1hj4to4g9ba46.cloudfront.net/questions/1775540_de8aa456a7f04782b35f030519b27bf7.png)
In Fig. 35 - 38, sources A and B emit long - range radio waves of wavelength 400 m, with the phase of the emission from A ahead of that from source
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