Physics Alternating Current PMC 2021
PMDC Verified Question 88 of 127

Microwaves are best classified as ____ waves.
A
Longitudinal and mechanical
B
Longitudinal and electromagnetic
C
Transverse and electromagnetic
D
Transverse and mechanical
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Transverse and electromagnetic
Concept:

Electromagnetic waves consist of electric and magnetic fields that vibrate perpendicular to the direction of wave travel.

Solution:

Microwaves belong to the electromagnetic spectrum, making them electromagnetic waves.

Because their oscillating electric and magnetic field vectors are oriented perpendicular to each other and perpendicular to the direction of propagation, they are also classified as transverse waves. Therefore, they are both transverse and electromagnetic.

Why other options are incorrect:

  • Options containing longitudinal or mechanical are incorrect because microwaves do not vibrate parallel to their direction of propagation and do not require a physical material medium to travel.

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