Question

how many times can light travel around the earth in one second? 1 time 7 times 4 times 8 times

Explanation:

To determine how many times light can travel around the Earth in one second, we use the following information: the circumference of the Earth is approximately 40,075 kilometers, and the speed of light is approximately 299,792 kilometers per second.

First, we calculate the time it takes for light to travel around the Earth once. Time = Distance / Speed. So, the time to go around the Earth once is \( \frac{40075}{299792} \) seconds per orbit.

To find the number of orbits in one second, we take the reciprocal: \( \frac{299792}{40075} \approx 7.48 \). Rounding to a reasonable whole number, light can travel around the Earth about 7 times in one second.

Answer:

B. 7 times (assuming the options are labeled with letters, if the original options had labels like A, B, C, D with 7 times as one of them; if not, just "7 times" as the answer based on the calculation)