Multiple Choice
Which statement is true?
A) Speed of light in air is lower than in glass.
B) Radio waves in the AM band are not electromagnetic waves.
C) Some electromagnetic waves will pass through walls that light cannot penetrate.
D) In air light travels much faster than radiation from a microwave oven.
E) Electromagnetic waves can't travel in perfect vacuum.
Correct Answer:

Verified
Correct Answer:
Verified
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