What is the maximum frequency which can be transmitted by ground waves ?

What are ground waves?

What is the maximum resistance which can be made using five resistors each of 1/5 ohm

What is the maximum number of electrons which can be accommodated in the innermost shell of an atom ?

What is the maximum number of electrons which can be accommodated in the K shell of an atom ?

From the following, identify the electromagnetic waves having the maximum frequency? Radio waves Gamma rays visible light Microwaves Ultraviolet rays and Infrared rays.

High frequency waves are: