Radar detects objects by sending and receiving microwave signals. A student wants to design an object that cannot be detected by radar.

Question

What designs could the student use for the object to help it avoid radar detection? Select ,begin emphasis,two,end emphasis, designs that would help the object avoid detection.

Answer options with 5 options
A.
Make the object with a material that reflects microwaves so that the radar gets the wrong signals.

B.
Make the object with a material that absorbs microwaves so that the object doesn't return any signals.

C.
Make the object with a material that blocks the travel of microwaves so that the radar gets different signals.

D.
Make the object with a material that does not produce microwaves so that the device doesn't get any signals.

E.
Make the object with a material that microwaves can travel through so that the object won't interfere with the radar signals.

Answer 1

To design an object that cannot be detected by radar, the student should focus on materials and designs that either absorb microwaves or manipulate their signals in such a way that they do not return a detectable signal.

The two best options from the provided list are:

B. Make the object with a material that absorbs microwaves so that the object doesn't return any signals.

C. Make the object with a material that blocks the travel of microwaves so that the radar gets different signals.

Option B is effective because it ensures that no microwaves are reflected back to the radar, making the object effectively invisible to detection. Option C, while not as straightforward, suggests a material that disrupts the radar signals in such a way that it may alter the expected return signals, potentially masking the object from detection.

Options A, D, and E are less effective for avoiding radar detection.