Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

Home / Doubts and Solutions/ICSE/Class 9/Physics

A hydrometer of weight 10.5 gf, has the area of cross-section of its stem 0.2 cm2.  If the bulb of hydrometer has a volume of 8.5 cm3, find the

1. density of liquid in which only bulb of hydrometer gets immersed

2. density of another liquid in which 1.5 cm of its stem gets immersed

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert
Answer:

Wt of hydrometer = 10.5 gf

Volume of liquid displaced = Volume of the bulb = 8.5 cm3

Also, by the law of flotation

Wt. of liquid displaced = Wt. of hydrometer = 10.5 gf

Therefore, Density of liquid =

2. Volume of liquid displaced = Volume of bulb + Volume of 1.5 cm of stem

                                              = 8.5 cm3 + 1.5 X 0.2 cm3 = 8.8 cm3

Mass of liquid displaced = Mass of hydrometer = 10.5 g

Therefore, Density of liquid =

Answered by Expert 4th June 2014, 3:23 PM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Report an issue
Previous Question
Next Question
Your answer has been posted successfully!

Free related questions

  1. Which of the two push or pull is easier?Give reason for your answer?
  2. Give an example each of pull and push which do not produce any major change in the shape size of a body?
16th August 2016, 11:11 AM
What is mean by buoyancy 
19th August 2016, 1:25 PM
s uniform motion always rectilinear motion?is the converse true?explain
1st September 2016, 11:39 AM
A car travels a distance 100m with a constant acceleration and average velocity 20 ms-1.The final velocity acqired by the car is 25 m s-1 . Find initial velocity and acceleration of the car.
2nd January 2017, 10:11 AM

The diagram above in Fig shows a convex mirror.C is its centre of curvature and F is its focus.(i)Draw two rays from A and hence locate the position of image of object OA.Label the image IB.(ii)State three characteristics of the image. 

3rd January 2017, 4:00 PM
RELATED STUDY RESOURCES :
ICSE Class-9 QUESTION ANSWERS

Chat with us on WhatsApp