Home
Class 9
MATHS
The inner diameter of a cylindrical wood...

The inner diameter of a cylindrical wooden pipe is 24 cm and its outer diameter is 28 cm. The length of the pipe is 35 cm. Find the mass of the pipe, if 1 cm3 of wood has a mass of 0.6 g.

Text Solution

Verified by Experts

Volume=Volume of outer cylinder-Volume of inner cylinder
=`piR^2h-pir^2h`
=`pih(R^2-r^2)`
=`22/7*35(14^2-12^2)`
=`5720cc`
Mass=0.69*5720
=3432g.
Promotional Banner

Topper's Solved these Questions

  • SURFACE AREAS AND VOLUMES

    NCERT|Exercise Exercise 13.3|8 Videos

  • SURFACE AREAS AND VOLUMES

    NCERT|Exercise Exercise 13.9|3 Videos

  • STATISTICS

    NCERT|Exercise EXERCISE 14.1|2 Videos

  • TRIANGLES

    NCERT|Exercise EXERCISE 7.2|8 Videos

Similar Questions

Explore conceptually related problems

The inner diameter of a cylindrical wooden pipe is 24cm and its outer diameter is 28cm. The length of the pipe is 35cm. Find the mass of the pipe,if 1cm^(3) of wood has a mass of 0.6gm.

A metallic cylindrical pipe has outer radius of 3 cm and an inner radius of 2 cm. If the length of the pipe is 70 cm. then the volume of metal in the pipe, in "cm"^(3) , is

An iron pipe 20cm long has exterior diameter equal to 25cm .If the thickness of the pipe is 1cm, find the whole surface of the pipe.

An iron pipe is 21 m long and its exterior diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weight is 8 g/cm' find the weight of pipe.

A hollow copper pipe is 22 cm long and its external diameter is 28 cm.If the thickness of the pipe is 3 cm and iron weighs 8.5 g/ cm^3 , then the weight of the pipe is closest to:

A hollow iron pipe is 28 cm long and its external diameter is 10 cm.If the thickness of the pipe is 2 cm and iron weighs 5g//cm^(3) , then the weight of the pipe is :

A hollow iron pipe of 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weights "8 g/cm"^(3) , then the weight of the pipe is