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प्रश्न
Describe simple experiments to prove that liquids have mass
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उत्तर
have mass - a liquid occupies mass
Experiment: A liquid placed on one side of the scale, causes the scale to tilt towards one side.
Conclusion: The scale tilts due to the mass of the liquid, hence all liquids have mass.
संबंधित प्रश्न
Give reasons:
A wooden table should be called a solid.
What are molecules?
Write whether the following statements are true or false:
Only water can exist in three different states
State the main physical properties of matter.
Describe simple experiments to prove that solids have mass
Discuss briefly on three states of matter.
The feather and paper cup can float on the water.
The force of attraction between liquid particles is more than solid particles.
Which of the following are homogeneous in nature?
- ice
- wood
- soil
- Air
A strong current of trivalent gaseous boron passed through a silicon crystal decreases the density of the crystal due to part replacement of silicon by boron and due to interstitial vacancies created by missing Si atoms. In one such experiment, one gram of silicon is taken and the boron atoms are found to be 1000 ppm by weight, when the density of the Si crystal decreases by 12%. The percentage of missing vacancies due to silicon, which are filled up by boron atoms will be ____ g. [Given · Atomic wt. Si= 30, B = 11]
