Answer: Microwaves
Explanation:
RADAR stands for radio detection and ranging. Radio waves range from 300 GHz to 30 Hz. Modern radar uses higher frequency of waves for detection. These waves are microwaves (300 MHz-300 GHz). Microwaves are types of radio waves and are used in the radar detection.
The electromagnetic wave which has highest frequency is gamma wave but it is not used for radar detection.
Hence, the correct answer is microwaves are the type pf radio waves which have the highest frequency and are used in radar detection.
Answer:
It becomes wider
Explanation:
Because The bigger the object the wave interacts with, the more spread there is in the interference pattern. Decreasing the size of the opening increases the spread in the pattern.
Will reduce 4 times.

So called LUG (Law of Universal gravitation).
A thermos as another name - it's called the vacuum flask. It's used for<span> storing cryogens when it has certain boiling points that are much lower than the actual room temperature. Many people use thermoses as a cup for drinking, specifically coffee, teas, and other hot drinks.
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Answer:
This has all the answer (Data sheet, graph, answers to the questions, and the summary) :)