Answer:
A.)Microwaves are used for cooking food and for satellite communications. High frequency microwaves have frequencies which are easily absorbed by molecules in food. ... Microwaves pass easily through the atmosphere, so they can pass between stations on Earth and satellites in orbit.
B.) Microwaves are used in radars because they can pass through any object. The frequency of the microwaves lies between infrared waves and radio waves and covers a high range of frequencies. ... The microwaves are electromagnetic waves with high wavelength and low frequencies. So, it is used in radar to detect the objects.
