Dimensions of Power of Lens

Dimensional Formula of Power of Lens

The dimensional formula of Power of Lens is given by,

M0 L-1 T0

Where,

  • M = Mass
  • L = Length
  • T = Time

Derivation

Power of Lens (D) = Focal Length-1 . . . (1)

The dimensional formula of focal length = [MLT0] . . . . (2)

On substituting equation (2) in equation (1) we get,

Power of Lens = Focal Length-1

Or, D = [MLT0]-1 = [M0 L-1 T0].

Therefore, the power of lens is dimensionally represented as [M0 L-1 T0].

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