Question

1. which type of emr has the 3rd highest energy? the 2nd longest wavelength? the 4th lowest frequency?

Explanation:

Electromagnetic radiation (EMR) includes radio - waves, microwaves, infrared, visible light, ultraviolet, X - rays, and gamma - rays. Radio - waves have the lowest frequency and longest wavelength among them, while gamma - rays have the highest energy. The order of decreasing energy and increasing frequency is gamma - rays > X - rays > ultraviolet > visible light > infrared > microwaves > radio - waves. For the third - highest energy, it is ultraviolet. For the second - longest wavelength, it is microwaves. For the fourth - lowest frequency, it is visible light.

Answer:

The type of EMR with the 3rd highest energy: Ultraviolet
The type of EMR with the 2nd longest wavelength: Microwaves
The type of EMR with the 4th lowest frequency: Visible light