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AP EAMCET202021 Sep 2020Morning ShiftPhysicsUnits and DimensionsActual

The SI unit of length is 'metre'. Suppose we adopt a new unit of length which equals (x ) metre. Then, the area of (1 ~m ^2 ) expressed in terms of new unit has a magnitude

Options

  1. A(x )
  2. B(x^2 )
  3. C( 1 x )
  4. D( 1 x^2 )

Correct answer

D. ( 1 x^2 )

Step-by-step solution

SI unit of length = metre (m) New unit of length (=x ) metre Hence, ( 1 ~m = 1 x ) new units ( ) Area, (1 ~m ^2=1 ~m 1 ~m ) (= 1 x 1 x = 1 x^2 (in new units) )

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