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Is Matter Around Us Pure
How can bats ascertain distances, directions, nature and size of the obstacles without eyes?
Ultrasonic waves are produced and received by bats during it's flight. After being reflected by the obstacle in it's path, the bast receives these waves. From the time interval between transmission and reception of ultrasonic waves, the bat gets information about the distance, nature of obstacle and its direction of location. Hence bats can move about freely even in total darkness.
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Which separation techniques will you apply for the separation of the following?
Sodium chloride from its solution in water.
Which separation techniques will you apply for the separation of the following?
Ammonium chloride from a mixture containing sodium chloride and ammonium chloride.
Which separation techniques will you apply for the separation of the following?
Small pieces of metal in the engine oil of a car.
Which separation techniques will you apply for the separation of the following?
Different pigments from an extract of flower petals.
Which separation techniques will you apply for the separation of the following?
Butter from curd.
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