Advertisements
Advertisements
Question
Why do sea divers need special protective suit?
Advertisements
Solution
The sea divers need special protective suit to wear because in deep sea, the total pressure exerted on the diver's body is much more than his blood pressure. To withstand it, he/she needs to wear a special protective suit.
APPEARS IN
RELATED QUESTIONS
In which direction does the buoyant force on an object due to a liquid act ?
The density of a body which sinks in water is ......... than 1000 Kg m-3.
A piece of wood floats on water. The buoyant force on wood will be
What is a density bottle? How is it used to find the density of a liquid?
How does the pressure exerted by thrust depend on the area of surface on which it acts? Explain with a suitable example.
A dam has broader walls at the bottom than at the top. Explain.
Complete the following sentence :
Pressure at a depth h in a liquid of density p is ......................
The mass of a block made of certain material is 13.5 kg and its volume is 15 × 10-3 m3.
(a) Calculate upthrust on the block if it is held fully immersed in water.
(b) Will the block float or sink in water when released? Give a reason for your answer.
(c) What will be the upthrust on block while floating?
Take density of water = 1000 kg m-3.
The base of the cylindrical vessel measures 300 cm2. Water is poured into it up to a depth of 6 cm. Calculate the pressure of water on the base in the vessel.
Most buoyant objects are those with relatively ______.
- high volume
- higher mass
- low density
- less viscosity
