Question

explain why the flash of lightning reach us first and sound of thunder is heard a little later

Answer 1

That is Because The Speed of Light is Comparatively More in Magnitude than that of Speed of Sound.
Also Light is the fastest known thing to travel in Our Universe.

Answer 2

the flash of lightning reach us first than the sound of thunder because the speed of light is much more i.e.3×10^8m/s than the speed of sound i.e 344m/s

plz mark it as brainliest