9th Class Science Gravitation and Floatation Question Bank 9th CBSE Science Floatation

  • question_answer
      While determining the density of the material of metallic sphere using a spring balance and measuring cylinder. Ruby noted the following readings          (a) Mass of the sphere = 81 g (b)(i) Reading of water level in the cylinder without sphere = 59 mL (ii) Reading of water level in the cylinder with sphere = 68 mL On the basis of these observations, find the density of the material of the sphere.

    Answer:

       From Archimedes' principle, Volume of sphere = Volume of wafer displaced by sphere As, density


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