Question

Find the approximate volume of metal in a hollow spherical shell whose internal and external radii are 3cm and 3.0005cm,respectively.

Answer 1

Hii friend,


Internal radius of hollow spherical shell (r) = 3 cm

And,


External radius of hollow spherical shell (R) = 3.0005 cm

Volume of hollow spherical shell = (External Volume)-(Internal volume)


=> (4/3 πR³ - 4/3 πr³)

=> 4/3π(R³-r³)

=> 4/3 π{(3.0005)³ - (3)³}


=> 4/3 π( 27.0135024 - 27)

=> 4/3 π ( 0135023)

=> 4/3 × 22/7 × 0135023

=> 4×22×0135023/3×7

=> 1.1882024/21

=> 0.05658107 cm³.



HOPE IT WILL HELP YOU.... :-)

Answer 2

Hiii,

Here is your answer