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In the Einstein’s equation E=mc2, what is “c”?

In the Einstein’s equation E=mc2, what is “c”?

  • (A) Velocity of light
  • (B) Electric power of cell
  • (C) Radius of Earth
  • (D) Speed of sound
In Einstein’s well-known equation E = mc², ‘c’ represents the speed (velocity) of light in vacuum, which is approximately 3 × 10⁸  m/sec. This value of speed of light is employed as a conversion factor for mass and energy, showing how a small mass may generate an enormous energy since the squared value of ‘c’ is an extremely high number.
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 ‘NATO’ is an abbreviation of:

March 18, 2026 No Comments
  • (A) North Atlantic Treaty Organization
  • (B) Non-Aligned Treaty Organization
  • (C) Non-Aligned Trading Organization
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