Advertisements
Advertisements
प्रश्न
Steel sinks in water but a steel boat floats. Why ?
Advertisements
उत्तर
Steel sinks in water because the density of steel is higher than water. But when steel is converted into a steel boat, it traps a lot of air and thus the average density of the steel boat is less than water. Hence, steel boat floats on water.
APPEARS IN
संबंधित प्रश्न
Write the common unit of density.
The relative density of mercury is 13.6. What does this statement mean?
Fill in the blank with suitable word :
A heavy ship floats in water because its....................density is less than that of water.
A mug full of water appears light as long as it is under water in the bucket than when it is outside water. Why ?
Explain why, big boulders can be moved easily by flood.
Explain why, a piece of glass sinks in water but it floats in mercury.
A beaker full of water is suspended from a spring balance. Will the reading of the balance change if a cork is placed in water ?
A `1/2` kg sheet of tin sinks in water but if the same sheet is converted into a box or boat, it floats. Why?
Give reason.
What determines whether an object floats or sinks in a fluid?
Choose the odd one:
