The speed of light is:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 3 × 108 m/s
Light travels through a vacuum at about 3 × 108 m/s (more precisely 299,792,458 m/s), that is, about 3 lakh kilometres every second. Nothing travels faster; light from the Sun takes about 8 minutes 20 seconds to reach the Earth.