Which of the following observations demonstrates that visible light waves are electromagnetic and not mechanical?
A)Sunlight can pass through gas.
B)Sunlight can pass through solids.
C)Sunlight can pass through liquids.
D)Sunlight can pass through a vacuum.

Question

Quizplus · Accepted Answer

Sunlight's ability to travel through a vacuum demonstrates that it is electromagnetic in nature. Mechanical waves require a medium to propagate, whereas electromagnetic waves do not, allowing them to travel through the vacuum of space.

Which of the Following Observations Demonstrates That Visible Light Waves