Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

Part A You are listening to the FM radio in your car. As you come to a stop at a

ID: 2041010 • Letter: P

Question

Part A You are listening to the FM radio in your car. As you come to a stop at a traffic light, you notice that the radio signal is fuzzy. By pulling up a short distance, you can make the reception clear again. In this problem, we work through a simple model of what is happening Our model is that the radio waves are taking two paths to your radio antenna What is the distance d between points A and B? Express your answer in wavelengths, as a fraction. View Available Hint(s) the direct route from the transmitter . an indirect route via reflection off a building Because the two paths have different lengths, they can constructively or destructively interfere. Assume that the transmitter is very far away, and that the building is at a 45-degree angle from the path to the transmitter. (Figure 1) Point A in the figure is where you originally stopped, and point B is where the station is completely clear again. Finally, assume that thee signal is at its worst at point A, and at its clearest at pointB ?? ?? Figure 1 of 1 wavelengths Submit Incorrect. Ty Again; 5 attempts remaining The correct answer does not depend on: A Part B

Explanation / Answer

You have computed correctly. The answer is half of wavelength, i.e. lambda/2.

But the way they want you to enter is different. Just enter 1/2, the wavelength is already given outside the box.

So, the answer will be:

1/2 (or 0.5)