How far away is a lightning strike if you hear the thunderclap 2.00 s after you see the lightning bolt strike? (v_sound = 340 m/s, v_light = 3 *10⁸ m/s) A) 113 m B) 340 m C) 680 m D) 1020 m

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Quizplus · Accepted Answer

The speed of light is much greater than the speed of sound, so the time it takes for the light to reach you is negligible. The time it takes for the sound to reach you is 2.00 s, so the distance to the lightning strike is:distance = speed × time = 340 m/s × 2.00 s = 680 m

How Far Away Is a Lightning Strike If You Hear