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Write the SI units of Relative density - Physics

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प्रश्न

Write the SI units of Relative density

एका वाक्यात उत्तर
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उत्तर

Relative density is a pure ratio it has no dimension.

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Relation Between Volume of Submerged Part of a Floating Body, the Densities of Liquid and the Body
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पाठ 4: Fluids - Exercise 2 [पृष्ठ १७४]

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फ्रँक Physics [English] Class 9 ICSE
पाठ 4 Fluids
Exercise 2 | Q 20.4 | पृष्ठ १७४

संबंधित प्रश्‍न

A body held completely immersed inside a liquid experiences two forces:

(i) F1, the force due to gravity and

(ii) F2, the buoyant force.

Draw a diagram showing the direction of these forces acting on the body and state the condition when the body will float or sink. 


A bunch of feathers and a stone of the same mass are released simultaneously in air. Which will fall faster and why? How will your observation be different if they are released simultaneously in vacuum?


A piece of brass weighs 175 gf in air and 150 gf when fully submerged in water. The density of water is 1.0 g cm-3.

(i) What is the volume of the brass piece? (ii) Why does the brass piece weigh less in water? 


The density of copper is 8.83 g cm-3. Express it in kg m-3. 


A piece of iron weighs 44.5 gf in air. If the density of iron is 8.9 × 103, find the weight of iron piece when immersed in water.


A block of wood of mass 24 kg floats on water. The volume of wood is 0.032 m3. Find: 

  1. the volume of block below the surface of water,
  2. the density of wood.

(Density of water = 1000 kg m−3)


A piece of wax floats on brine. What fraction of its volume is immersed?

Density of wax = 0.95 g cm-3, Density of brine = 1.1 g cm-3. 


When a piece of ice floating in water melts, the level of water inside the glass remains same. Explain.


An iron ball of mass 600 g is dropped in mercury contained in a beaker. Will the ball float or sink? What will be its apparent weight?

Complete the following result:

Density in kg m-3 = ______ x density in g cm-3


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