Q24 / 110 · NTA Abhyas (NEET) 2020 · Physics · Units and Dimensions

Out of the following four dimensional quantities, which one qualifies to be called a universal constant?

  • A
    Acceleration due to gravity
  • B
    Surface tension of water
  • C
    Weight of a standard kilogram mass
  • Correct answer
    D
    The velocity of light in vacuum

Solution

The velocity of light in vacuum is independent of any other constant so it is a universal constant. 

c=3×108 m s-2

Hence, the correct answer is option: 'D'.

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