Well, it is the difference between the path lines, but not the path length difference.songoku said:
The path difference of EM waves received by radio telescopes is calculated by measuring the difference in arrival time of the waves at two or more receiving antennas. This is done by using a technique called interferometry, where the signals from each antenna are combined and analyzed to determine the path difference.
Finding the path difference of EM waves received by radio telescopes is important because it allows us to accurately determine the direction and distance of the source of the waves. This information is crucial in astronomical studies and can help us understand the properties and behavior of celestial objects.
Several factors can affect the accuracy of measuring the path difference of EM waves received by radio telescopes. These include atmospheric conditions, the sensitivity and calibration of the receiving antennas, and any interference or noise in the signals.
Yes, the path difference of EM waves received by radio telescopes can be used to determine the size of an object in space. By measuring the path difference and combining it with other information such as the frequency of the waves, scientists can calculate the size of the source object using mathematical equations.
While the path difference of EM waves received by radio telescopes is a powerful tool in astronomical studies, there are limitations to its use. For example, it may not be accurate for sources that are very far away or for objects that emit weak or intermittent signals. Additionally, atmospheric conditions and other external factors can also affect the accuracy of the measurements.