Question

order the types of electromagnetic radiation from longest wavelength (1) to shortest wavelength (7).

• gamma
• infrared
• microwaves
• radiowaves
• uv
• x-ray
• visible

Explanation:

Step1: Recall EM spectrum order

The electromagnetic (EM) spectrum in order of longest to shortest wavelength is: Radiowaves > Microwaves > Infrared > Visible > UV > X - ray > Gamma rays.

Step2: Assign ranks (1 = longest, 7 = shortest)

• Radiowaves: Longest, so rank 1.
• Microwaves: Next, rank 2.
• Infrared: Next, rank 3.
• Visible: Next, rank 4.
• UV: Next, rank 5.
• X - ray: Next, rank 6.
• Gamma: Shortest, rank 7.

Answer:

1. radiowaves
2. microwaves
3. infrared
4. visible
5. UV
6. x - ray
7. gamma