Electromagnetic waves are made of oscillating magnetic and electric fields and, like all waves, they carry energy. There are many types of electromagnetic waves. From lowest energy to highest energy (red to blue) there are radio waves, microwaves, infrared, visible light, ultraviolet, x-rays and gamma rays.
Why light is a transverse wave?
Light is a transverse wave because its components vibrate perpendicular to the direction of propagation. A transverse wave is a wave that oscillates perpendicular to its direction of propagation. It has an electric and a magnetic component.
Is a heat wave a transverse or longitudinal wave?
It is assumed that the question is supposed to be “Is heat transferred as a longitudinal wave or a transverse wave”? It is well known that heat can be transferred by radiation, convection and conduction. These vibrations can be both longitudinal and transverse. And they can be described as waves.