Question

Assertion: For cooking in a microwave oven, food is always kept in metal containers.
Reasion: The energy of microwave is easily transferred to the food in metal container.
A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reasion are true but reason is not the correct explanation of assertion.
C. If assertion is true but reasion is false.
D. If assertion and reason both are false.

Answer 1

Correct Answer - d
The atoms of the metallic container are set into forced vibrations by the microwaves. Hence, energy of the microwaves is not efficirently transferred to the metallic contain. Hence food in metallic containers cannot be cooked in microwave oven. Normally in microwave oven the energy of waves is transferred to the kinetic energy of the molecules. This raises the temperature of any food.