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JEE Main 2019 · 10 Jan · Shift I

JEE Main 2019 Physics question on Units and Measurements

The density of a material in SI units is 128 kg m−3128 \text{ kg m}^{-3}. In certain units in which the unit of length is 25 cm and the unit of mass is 50 g, the numerical value of density of the material is
  1. A.
    40
  2. B.
    16
  3. C.
    640
  4. D.
    410
Show answer

Correct option: A

[JEE Main 2019 · 10 Jan · Shift I]

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