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in a vacuum, all electromagnetic waves have the same _____

a. phase

b. speed

c. frequency

d. wavelength ​


Sagot :

Answer:

The correct answer is the speed in a vacuum. Electromagnetic radiation is a type of energy that is commonly known as light. Light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0x108 meters per second through a vacuum.

Explanation: