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प्रश्न
A body of weight W is floating in a liquid. Its apparent weight will be
पर्याय
Equal to W
Less than W
Greater than W
Zero
उत्तर
A body of weight W is floating in a liquid. Its apparent weight will be Zero
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संबंधित प्रश्न
State the principle of floatation.
A body of volume V and density ρs , floats with volume v inside a liquid of density ρL. Show that `"v"/V = ρ_s/ρ_L` .
An iron nail sinks in the water while an iron ship floats on water. Explain the reason.
A piece of ice floating in a glass of water melts, but the level of water in the glass does not change.
Give reasons.
Hint: Ice contracts on melting.
A hollow metal cylinder of length 10 cm floats in alcohol of density 0.80 g cm-3, with 1 cm of its length above it. What length of cylinder will be above copper sulphate solution of density 1.25 g cm-3?
Name an instrument based on this principle. State two uses of the instrument that you describe.
Explain the following:
An egg sinks in fresh water but floats in a strong solution of salt.
Where do we use lactometers?
How do submarines sink and float in water?
