Physics, 03.02.2020 09:51 random286

In conventional television, signals are broadcast from towers to home receivers. even when a receiver is not in direct view of a tower because of a hill or building, it can still intercept a signal if the signal diffracts enough around the obstacle, into the obstacle’s “shadow region.” current television signals have a wavelength of about 54 cm, but future digital television signals that are to be transmitted from towers will have a wavelength of about 13 mm. (a) did this change in wavelength increase or decrease the diffraction of the signals into the shadow regions of obstacles? assume that a signal passes through an opening of 5.7 m width between two adjacent buildings. what is the angular spread of the central diffraction maximum (out to the first minima) for wavelengths of (b) 54 cm and (c) 13 mm?

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In conventional television, signals are broadcast from towers to home receivers. even when a receive...