Einstein's theory of special relativity sets of the speed of light, 186,000 miles per second (300 million meters per second). ... The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light.
Answer: [tex]3.0\times 10^8m[/tex]
Explanation:
Speed is defined as the distance travelled per unit time.
[tex]speed=\frac{distance}{time}[/tex]
Units of speed are inter convertible:
Given : speed = [tex]1.86\times 10^5miles/sec[/tex]
That is in 1 second , light travels = [tex]1.86\times 10^5miles[/tex]
Converting miles to meters:
1 mile = 1609.34 m
[tex]1.86\times 10^5miles=\frac{1609.34}{1}\times 1.86\times 10^5=3.0\times 10^8m[/tex]
Thus speed of light will be [tex]3.0\times 10^8[/tex] meters.
