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 an object float or sink when placed on 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.
Explain why, big boulders can be moved easily by flood.
Explain why, a piece of glass sinks in water but it floats in mercury.
Steel sinks in water but a steel boat floats. Why ?
Why does a ship made of iron and steel float in water whereas a small piece of iron sinks in it ?
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?
Consider the following information in respect of four objects A, B, C and D :
| Object | Density(kg/m3) | Volume(m3) | Mass(kg) |
| A | 2 | 4000 | |
| B | 8000 | 4 | |
| C | 2000 | 1000 | |
| D | 4 | 2000 |
Which object would float on water ?
Choose the odd one:
