Which electromagnetic radiation(s) is/are used to cook food?
Infrared radiation only
Microwave radiation only
Infrared and microwave radiations
All electromagnetic radiations
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CAPF – 2021
– Microwave ovens use microwave radiation to heat food. Microwaves are absorbed by water, fats, and sugars, causing them to vibrate and produce heat.
– Conventional ovens and grills use infrared radiation (thermal radiation) emitted by heating elements or flames to heat the food surface, and then heat is transferred into the food by conduction and convection.
Therefore, both infrared and microwave radiations are used in cooking. While visible light and other forms of EM radiation also carry energy and can potentially heat things, infrared and microwave are the primary forms utilized in common cooking appliances.
– Identify which forms of EM radiation are used in common cooking methods and appliances.
– Microwave ovens use microwaves.
– Ovens and grills use infrared radiation.