Answer: It takes about 500 seconds for light to reach earth from the Sun which is also 8minutes 20 seconds
Explanation: The earth orbits around the sun at a distance of 150 million kilometres. Sunlight travels at the speed of light which is 300,000 kilometres per second.
Firstly, convert 300 million metres to kilometre; 1000 metres = 1 kilometre
Therefore, 300,000,000 metres= 300,000,000/1000= 300,000 kilometers. This gives us the speed of light which is 300,000 kilometers per second
To get the time it takes for sunlight to get to the earth, divide 150,000,000 by 300,000.
Since Time = distance/speed.
150,000,000/300,000= 500seconds