Answer: gamma rays
Step-by-step explanation:
Electromagnetic wave is defined as the wave which is associated with both electrical and magnetic component associated with them.
The Electromagnetic spectrum involves gamma rays , X rays, ultra violet rays, visible rays, infrared rays, micro waves and radio waves which are arranged in order of increasing wavelength and decreasing frequency.
The relationship between energy and wavelength of the wave follows the equation:
![E=(hc)/(\lambda)](https://img.qammunity.org/2020/formulas/physics/college/45tzfa2w33ef1zdvz2ml0re9vfcfr1cgow.png)
where,
E = energy
h = plank's constant
c = speed of light
= wavelength of the wave
From the above relation, it is visible that energy and wavelength follow inverse relation. Thus in order of increasing energy, the order is gamma rays > ultra violet rays > infrared rays> microwaves.