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प्रश्न
Why does a block of wood held under water rise to the surface when released ?
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उत्तर
A wooden block held under water floats on the surface on release because it is less dense than water. A substance floats if it is less dense than the fluid in which it is immersed after the external force is withdrawn from it.
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संबंधित प्रश्न
What is the law of floatation?
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Answer the following:
Will a piece of iron float or sink in mercury?
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Complete the following sentence :
Pressure at a depth h in a liquid of density p is ......................
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Select the correct option.
Unit of thrust in the SI system is
