Why do we hear thunder seconds after a lightning strike ?
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Answer:
In context of Physics, Thunder is Sound, and Lightning is Light. Read the explanation to understand.
Explanation:
It is because the speed of light (i.e. 300000000 m/s) is faster than the speed of sound (i.e. 330 m/s). Let me give you an example, the cloud is 8 km away :
Time Difference = Time(For Sound)-Time(For Light)
Time Difference = (24.24-2.66)sec
Time Difference = 21.58sec
Time Difference =22sec approx.
Here by this example where the time difference is approximately 22 seconds, you can understand why the time difference exists.
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