Electromagnetic Waves and Microwave Cooking – Rankers Physics

Properties of EM Waves: Practice Problem & Solution

Assertion (A): When cooking in microwave ovens, metal containers are used. Reason (R): Energy of microwaves can be easily transferred to the food through metal.  
Both (A) \(&\) (R) are true and the (R) is the correct explanation of the (A)
Both (A) \(&\) (R) are true but the (R) is not the correct explanation of the (A)
(A) is true but (R) is false
Both (A) and (R) are false

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Properties of EM Waves. Understanding the underlying formula is key to arriving at the correct answer below:

Metal containers reflect microwaves and are not used in microwave ovens. Microwaves heat food by interacting with water molecules, not through metal. Thus, both assertion and reason are false.

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