It's about star stuff The following table shows two types of electromagnetic waves and three random applications of electromagnetic waves.

Which of these best matches the waves with their applications?

The answer is C. Gamma rays are the highest energy electromagnetic waves in the electromagnetic spectrum. There are produced through radioactive nuclei decay (fission and fusion) that occurs in centers of stars. Infrared, on the other hand, is used to detect heat signatures. Infrared is produced by hot objects since its one way that heat is transferred from one place to another (apart from conduction and convection).

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

i think its c if i'm wrong