Advertisements
Advertisements
प्रश्न
An iron nail sinks in water but it floats in mercury. Why ?
Advertisements
उत्तर
An iron nail sinks in water because the density of iron (7,900 kg/m3) is more than the density of water (1,000 kg/m3). Whereas the density of mercury (13,600 kg/m3) is more than the density of iron, so the iron nail floats in mercury.
APPEARS IN
संबंधित प्रश्न
Why does a block of plastic released under water come up to the surface of water?
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?
Write the common unit of density.
The relative density of mercury is 13.6. What does this statement mean?
Name the force the upward push of water on a submerged object .
A beaker full of water is suspended from a spring balance. Will the reading of the balance change if a piece of heavy metal is placed in it ?
Give reasons for your answer.
A boy get into a floating boat .
What happens to the boat ?
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?
A rectangle wooden block has length, breadth and height of 50 cm, 25 cm and 10 cm, respectively. This wooden block is kept on ground in three different ways, turn by turn. Which of the following is the correct statement about the pressure exerted by this block on the ground?
Choose the odd one:
