English

The diagram given below show a body floating in three different liquids. A, B and C at different levels.(a) In which liquid does the body experience the greatest buoyant force?

Advertisements
Advertisements

Question

The diagram given below show a body floating in three different liquids. A, B and C at different levels.
(a) In which liquid does the body experience the greatest buoyant force?
(b) Which liquid has the least density?
(c) Which liquid has the highest density?

Short/Brief Note
Advertisements

Solution

a) Buoyant force is same in each case as the wt. of the body is same in each case and Buoyant force is equal to the weight of the liquid displaced by the immersed part of the body which balances the wt. of body.
(b) The liquid A has the least density as body immerses the maximum.
(c) Liquid C has the highest density as the body immerses the least.

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Physical Quantities and Measurement - Short/Long Answer Questions [Page 35]

APPEARS IN

Selina Concise Physics [English] Class 8 ICSE
Chapter 2 Physical Quantities and Measurement
Short/Long Answer Questions | Q 19 | Page 35

RELATED QUESTIONS

Which of the following will sink or float on water? (Density of water = 1 g Cm-3) body B having density 2520 kg m-3


The density of water is 1.0 g Cm-3. The density of iron is 7.8 × 10″3 g Cm-3. The density of mercury is 13.6 g Cm-3.
Answer the following:
Will a piece of iron float or sink in mercury?


The pressure P1 at the top of a dam and Pat a depth h form the top inside water (density p) are related as : 


A hammer exerts a force of 1.5 N on each of the two nails A and B. The area of cross section of tip of nail A is 2 mm2 while that of nail B is 6 mm2. Calculate pressure on each nail in pascal.


A body experiences an upthrust F1 in river water and F2 in sea water when dipped up to the same level. Which is more, F1 or F2? Give reason. 


Prove that the loss in weight of a body when immersed wholly or partially in a liquid is equal to the buoyant force (or upthrust) and this loss is because of the difference in pressure exerted by liquid on the upper and lower surfaces of the submerged part of body. 


The S.I. unit of upthrust is : 


A body of mass 3.5 kg displaces 1000 cm3 of water when fully immersed inside it. Calculate:

  1. the volume of body,
  2. the upthrust on body and
  3. the apparent weight of body in water. 

A beaker contains a liquid of density ‘ρ’ up to height ‘h’ such that ‘PA’ is atmospheric pressure and ‘g’ is the acceleration due to gravity. Answer the following questions:

  1. What is the pressure on the free surface of the liquid?
  2. What is the pressure on the base of the beaker?
  3. What is the lateral pressure at the base on the inner walls of the beaker?

How is thrust different from pressure?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×