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30 October, 17:02

Which of the following is true about all electromagnetic waves in a vacuum?

a. they all carry the same energy.

b. they all travel at the same speed.

c. they all have the same frequency.

d. the all have the same wavelength.

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Answers (1)
  1. 30 October, 17:12
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    B.) They all travel at the same speed
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