One Convenient Statement of the Distance Traveled by Light Over

question 140

Multiple Choice

One convenient statement of the distance traveled by light over very short times is that the speed of light is about "a foot per nanosecond." The speed of light is 3 × 10⁸ m/s.What,then,is a nanosecond?

• A) 10-⁷ seconds
• B) 10-⁹ seconds
• C) 10-¹² seconds
• D) 10-¹⁵ seconds

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