Do microwaves have a longer wavelength than infrared waves

Microwaves are at the higher frequency end of the radio wave band and low frequency radio waves are at the lower frequency end.

When you increase the total energy in a beam of light, one of two things can happen. It can get a higher frequency, which leads to a shorter wavelength ; this is the effect that is causing you confusion, because microwaves have a longer wavelength than visible light.

Radio waves, microwaves and infrared have lower frequency than visible light . Shorter wavelength: Ultraviolet, x-rays and gamma rays have a shorter wavelength than visible light.