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Turn your light off then on, how long time does it takes.

There you got the speed of light !!!!

300,000 km a sec is fast.

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15y ago

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Related Questions

How do you we find out speed of light?

something,some how and some where.


How could you find the wavelength of light if you knew it's speed and frequency?

Wavelength times frequency is the speed. To know the wavelength, you have to divide the speed by the frequency of the light.


How could you find the wavelength of light if you knew its speed and frequency?

You can use the equation: wavelength = speed of light / frequency. Given the speed of light (3.00 x 10^8 m/s) and the frequency of the light source, divide the speed of light by the frequency to determine the wavelength of the light.


How to find the frequency of a wavelength?

To find the frequency of a wavelength, you can use the formula: frequency speed of light / wavelength. The speed of light is a constant value of 3.00 x 108 meters per second. Simply divide the speed of light by the wavelength to calculate the frequency.


How to find the wavelength of a frequency?

To find the wavelength of a frequency, you can use the formula: wavelength speed of light / frequency. The speed of light is approximately 3.00 x 108 meters per second. Simply divide the speed of light by the frequency of the wave to calculate the wavelength.


How do you calculate light wavelength to frequency?

You can calculate frequency from wavelength using the equation: frequency = speed of light / wavelength. The speed of light in a vacuum is approximately 3.00 x 10^8 meters per second. By dividing this speed by the wavelength of light in meters, you can determine the frequency in hertz.


Why did Galileo want to find out what the speed of light was?

oh Galilieo


How do you find the frequency of a wavelength?

To find the frequency of a wavelength, you can use the formula: frequency speed of light / wavelength. The speed of light is a constant value of approximately 3.00 x 108 meters per second. By dividing the speed of light by the wavelength, you can calculate the frequency of the wave.


How find the speed of light of fused quartz (n1.46)?

You divide the speed of light in a vacuum (about 300,000,000 meters/second) by the index of refraction, "n".


What speed can a infra red light reach up to?

There's no reason that infrared light should move at a speed different from the speed of any other wavelength of light, or for that matter, the speed of any other form of electromagnetic radiation. The speed of infrared light is simply the speed of light in whatever medium it happens to find itself at the moment.


Which is faster speed or light?

Please be more specific.


How to calculate index refraction?

Index of refraction can be calculated using the formula n = c/v, where n is the index of refraction, c is the speed of light in a vacuum, and v is the speed of light in the medium. Just divide the speed of light in a vacuum by the speed of light in the medium to find the index of refraction for that medium.