How many inches will light travel in 1 nano second?

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How many inches will light travel in 1 nano second?

2006-09-04 02:32:48 · 2 answers · asked by Nicholas G 1 in Science & Mathematics ➔ Astronomy & Space

2 answers

The speed of light in a vacuum is 299,792,458 m/s.

In one nano second (1E-9 seconds), light will travel 0.2998 m.

There are 100 cm in 1 m, and 2.540 cm in one inch (sorry that is how I remember it). So there are 39.37 inches per meter.

This means that light will travel 11.80 inches in 1 nano second.

2006-09-04 02:38:44 · answer #1 · answered by tillmas 2 · 2⤊ 0⤋

3*10^8 m/s * 10^(-9) seconds is 3*10^(-1) meters which is 30 cm or about 11.81 inches.

Don't you have a calculator? Or do you just not know how to set up such problems?

Doug

2006-09-04 02:39:40 · answer #2 · answered by doug_donaghue 7 · 0⤊ 1⤋