Question

What is the speed of light in vaccum

Answer 1

The speed.of light in vacuum is

3 x 10^8. m/s ...
( 3 x 10 to the power of 8)

speed of light changes with medium...

the speed of light is maximum in vacuum

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Answer 2

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The speed of light in vaccum is $\sf{3×10^8 m/s}$

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Whisper- 20 dB

Rainfall- 50 dB

Talking normally - 60 dB

Busy city traffic -80 dB

Cheer of crowd at sporting event -90 dB

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Rock concert - 120 dB