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at a time when it is cloudy, there may be frequent thunder and lightning. the sound of thunder takes some time to reach you after you see the lightning. measure the time interval using a digital wrist watch or a stop watch

Posted by Shayaan Khan 2 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Preeti Dabral 2 years, 3 months ago

Both thunder and lightning takes place at the same time . When two clouds collide with each other lightning and Thunder occurs simultaneously. The speed of light is more than the speed of sound. The speed of sound in air is 346 metre per second whereas the speed of light in air is 299 792 kilometre per second. Hence, the speed of light is more then the speed of sound in air. And so for that in a cloudy day we can hear the sound of thunder after we see the crack of the lightening.

1Thank You

Sonu Thakur 2 years, 3 months ago

3x^+19x+30

1Thank You

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CBSE > Class 09 > Science