We can see the lightning much before we hear the thunder. Why?

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Solution

Speed of light in air is $3 \times 10^{8} m s^{- 1}$ .
Speed of sound in air at room temperature is $340 m s^{- 1}$ .
Thus, it is clear that the speed of the light is much greater than the speed of sound.
Therefore, we can see lightning much before we hear the thunder.

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We can see the lightning much before we hear the thunder. Why?

Speed of light in air is 3×108ms-1.Speed of sound in air at room temperature is 340ms-1.Thus, it is clear that the speed of the light is much greater than the speed of sound.Therefore, we can see lightning much before we hear the thunder.

Speed of light in air is $3 \times 10^{8} m s^{- 1}$ .
Speed of sound in air at room temperature is $340 m s^{- 1}$ .
Thus, it is clear that the speed of the light is much greater than the speed of sound.
Therefore, we can see lightning much before we hear the thunder.