Q. 235.0( 4 Votes )

# A hollow spherical shell is made of a metal of density If its internal and external radii are 8 cm and 9 cm respectively, find the weight of the shell.

Answer :

Given,

Internal radius of sphere (r_{i}) = 8 cm

External radius of sphere (r_{e}) = 9 cm

Volume of shell = (external volume – internal volume)

=

Weight of sphere = 909.33 × 4.5 = 4092 gm = 4.092 kg

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