Of the following, the correct arrangement of electromagnetic spectrum in decreasing order of wavelength is ______.
Fill in the blank with the correct answer from the options given below.
1
Radio waves, X-rays, Infrared waves, microwaves, visible waves
2
Infrared waves, microwaves, Radio waves, X-rays, visible waves
3
Radio waves, microwaves, Infrared waves, visible waves, X-rays
4
X-rays, visible waves, Infrared waves, microwaves, Radio wave