Pls Help infrared light

The information above:

Describe the frequency and wavelength range of this type of electromagnetic wave.

Frequency: 1013 – 1014

Wavelength: 25 μm - 2.5 μm

Using the information above and details from your research, write a paragraph of five sentences or more explaining how the device uses electromagnetic radiation (waves) to function.

The two metal spheres in the figure are connected by a metal wire with w switch in the middle. initially the switch is open. sphere 1, with the larger radius, i'd given a positive charge. sphere 2, with the smaller radius, is neutral. then the switch is closed. afterward, sphere 1 has charge q1, is at potential v1 and the electric field strength at its surface is e1. the values for sphere 2 are q2, v2, and e2. a. is v1 < ,> , or = to v2? explain. b. is q2 < , > , or = explain? c. is e1 < ,> ,or = to e2? explain?