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प्रश्न
A body experiences the same buoyant force when it floats or sinks in water.
विकल्प
Ture
False
उत्तर
False.
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संबंधित प्रश्न
Define the term Density of a substance.
Which of the following will sink or float on water? (Density of water = 1 g Cm-3)
body C having density 1100 kg m-3
Explain the following statement:
It is easier to cut with a sharp knife than with a blunt one.
Pressure at the free surface of a water lake is P1, while at a point at depth h below its free surface is P2. (a) How are P1 and P2 related? (b)Which is more P1 or P2?
The S.I. unit of pressure is :
A simple U tube contains mercury to the same level in both of its arms. If water is poured to a height of 13.6 cm in one arm, how much will be the rise in mercury level in the other arm?
Given : density of mercury = 13.6 x 103 kg m-3 and density of water = 103 kg m-3.
What do you understand by the term upthrust of a fluid? Describe an experiment to show its existence.
Why is a force needed to keep a block of wood inside water?
State whether true or false. If false, correct the statement.
The weight of fluid displaced determines the buoyant force on an object.
Complete the analogy.
Downward force : Weight :: Upward force offered by liquid : _____.
