Question

Arrange the rays in electromagnetic spectrum according to the increasing order of wavelength.
(1) Infrared rays, (2) X rays, (3) Radiowaves, (4) Microwaves, (5) Gamma rays, (6) UV rays.

• A. 5-6-4-3-2-1
• B. 5-2-6-1-4-3
• C. 3-4-1-6-2-5
• D. 1-4-3-5-2-6

Answer 1

The correct option is B

5-2-6-1-4-3

Electromagnetic rays (EM rays) are certain type of energies in the form of waves. These waves are present all around us in our daily lives from the mobile radiations to scannings that doctors ask us to take.
EM rays are arranged in the increasing order of their wavelength:

Gamma rays < X Rays < UV Rays < Infrared Rays < Microwaves < Radiowaves

Gamma rays have the shortest wavelengths and radio waves have the longest.