Advertisements
Advertisements
प्रश्न
Explain why, big boulders can be moved easily by flood.
उत्तर
During the floods, the boulders are immersed in water. The apparent weights of the boulders are less and that helps the flowing water to push and move the boulders.
APPEARS IN
संबंधित प्रश्न
Why does a block of plastic released under water come up to the surface of water?
The volume of 50 g of a substance is 20 cm3. If the density of water is 1 g cm−3, will the substance float or sink?
The volume of a 500 g sealed packet is 350 cm3. Will the packet float or sink in water if the density of water is 1 g cm−3? What will be the mass of the water displaced by this packet?
The relative density of mercury is 13.6. What does this statement mean?
The density of a body is 800 kg/m3. Will it sink or float when dipped in a bucket of water ? (Density of water = 1000 kg/m3).
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 ?
Steel sinks in water but a steel boat floats. Why ?
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?
Choose the odd one:
