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Question

Electromagnetic radiation travels through vacuum at a speed of __________ m/s.


A

186,000

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B

3.00 × 108

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C

10,000

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D

It depends on wavelength

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Solution

The correct option is B

3.00 × 108


The speed of light (electromagnetic radiation) through vacuum has a constant value of 3.00 x 108m/s and is independent of the wavelength in vacuum.


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