Question
How will you differentiate between a suspension and a colloid?
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What are parazoa?
A coin and a piece of paper are dropped simultaneously from the same height. Which of the two will touch the ground first? What will happen if the coin and the piece of paper are dropped in vacuum? Give reasons for your answer.
On which day, a hot day or a cold day, an echo is heard sooner? Give reason for your answer.
A body is moving along a circular path of radius R. What will be the distance travelled and displacement of the body when it completes half a revolution?
What is natural system of classification?