How Long Does It Take Light To Travel 1 Ft In Nanoseconds?

How Long Does It Take Light To Travel 1 Ft In Nanoseconds? speed of light is one foot per nanosecond. one second equals 109 nanoseconds. One meter is defined as 39.37 inches. How fast does light travel per second? The speed of light traveling through a vacuum is exactly 299,792,458 meters (983,571,056 feet) per second.

How Much Faster Does Light Travel Through Water?

How Much Faster Does Light Travel Through Water? Light travels at approximately 300,000 kilometers per second in a vacuum, which has a refractive index of 1.0, but it slows down to 225,000 kilometers per second in water (refractive index of 1.3; see Figure 2) and 200,000 kilometers per second in glass (refractive index of 1.5).