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Give some examples of Tyndall effect observed in your surroundings? - Science

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प्रश्न

Give some examples of the Tyndall effect observed in your surroundings?

थोडक्यात उत्तर
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उत्तर

Examples of the Tyndall effect:

  1. When light rays enter into a dark room through a hole or a small window.
  2. Sunlight passes through a group of trees in the forest.
  3. Path of light rays seen in front of the projector in a cinema hall.
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पाठ 2: Is Matter Around Us Pure - Short Answer Questions [पृष्ठ १६]

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एनसीईआरटी एक्झांप्लर Science [English] Class 9
पाठ 2 Is Matter Around Us Pure
Short Answer Questions | Q 27. | पृष्ठ १६

व्हिडिओ ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्‍न

The inter-molecular space is maximum in


Select the correct alternative

The molecules can move freely anywhere in

  1. gases
  2. liquids
  3. solids
  4. none of the above

Fill in the blank

All matter is made up of tiny particles called ______


A kind of matter which can sublime is


What is the scientific name of particles which make up mater?


Out of solids, liquids and gases, which one has :

  1. maximum movement of particles ?
  2. maximum interparticle attractions ?
  3. minimum spaces between particles ?

The best evidence for the existence and movement of particles in liquids was provided by :


Bromine and air take about 15 minutes to diffuse completely but bromine diffuses into a vacuum very rapidly. Why is this so?


What are pure substances ? Give two examples of pure substances.


What is the other name for impure substances ? Give two examples of impure substances.


Explain what happens when a beam of light is passed through a colloidal solution.


Which of the following is not an emulsion ?


Name the process by which common salt is purified.


Fill in the following blanks with suitable words :

The separation of liquids by fractional distillation is based on the difference in their .....................


Fill in the following blanks with suitable words :

The gases of air can be separated by fractional distillation of liquid air because they have different..............


Fill in the following blanks with suitable words :

 If a mixture contains iron filings as one of the constituents, it can be separated by using a .......................


How would you separate iodine from a mixture of iodine and common salt ?


______ is used for industrial refrigeration and transporting frozen food.


Define the term matter.


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