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Speed of light in vacuum is:​
  • a)
    3 x 108 m/s
  • b)
    3 x 109 m/s
  • c)
    2 x 109 m/s
  • d)
    2 x 1011 m/s
Correct answer is option 'A'. Can you explain this answer?
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Speed of light in vacuum is:​a)3 x 108m/sb)3 x 109m/sc)2 x 109m/...
The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. It's exact value is defined as 299 792 458 metres per second ( or approximately, 3*108 m/s)
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Speed of light in vacuum is:​a)3 x 108m/sb)3 x 109m/sc)2 x 109m/...
Visible light consists of weightless particles known as photons. It is one of the classification (spectrum classification) of Electromagnetic waves, all electromagnetic waves travel in vaccum with same velocity that 3 ×10^8 m/s . Electromagnetic waves do not require medium for their propagation, they consists of changing electric and magnetic field. Eg An oscillating charge particle.
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Speed of light in vacuum is:​a)3 x 108m/sb)3 x 109m/sc)2 x 109m/sd)2 x 1011m/sCorrect answer is option 'A'. Can you explain this answer?
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