Waves from a radio station with a wavelength of 900 m arrive at a home receiver a distance 50 km away from the transmitter by two paths. One arrives via a direct-line path and the second by reflection from a mountain directly behind the receiver. What is the minimum distance between the mountain and receiver such that destructive interference occurs at the location of the listener? Assume no phase change on reflection.
a. 675 m
c. 450 m
b. 900 m
d. 225 m
Question 2
The ideal gas law treats gas as consisting of:
a. atoms.
c. chemicals.
b. molecules.
d. bubbles.
Torque is a twisting force equal to the distance from the pivot point times the force applied ...
The heat range of a spark plug is determined by the distance the heat has to flow from the tip to ...
Face cradle adjustment for comfort of receiver.
Type of Interactions, Model, Examples and Dependence of Energy on Distance
Earthquake Waves
Finding the length given total distance and distance longer than other point