Yes, but your wording is confusing. The speed of light is 3*10^8 m/s so light will take 1/(3*10^8) = 3.3*10^-9 = 3.3 nanosecs. to cover 1m.

Alan C

On 29-Mar-20 10:22 AM, Larry Colen wrote:
Would a light meter be about three nanoseconds


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Larry Colen
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