is cooking popcorn using a microwave an example of radiation convection or conduction

Answer 1

Cooking popcorn in a microwave is primarily an example of radiation.

Microwave ovens use microwave radiation to heat food. The microwaves excite water molecules in the popcorn kernels, causing them to heat up and eventually pop. Unlike conduction (which involves heat transfer through direct contact) or convection (which involves heat transfer through the movement of fluids or gases), microwave cooking relies on the absorption of electromagnetic radiation by the food.