5. The diameter of a solid lead sphere is 14 cm. By melting this sphere how many spheres of radius 3.5 cm can be formed ? [W.

Question

5. The diameter of a solid lead sphere is 14
cm. By melting this sphere how many
spheres of radius 3.5 cm can be formed ?
[W.B.M. 19941​

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Serenity 3 weeks 2021-09-09T12:29:13+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-09-09T12:30:49+00:00

    Answer:

    8

    Step-by-step explanation:

    Volume of sphere=4/3pi×r^3

    CASE-1:

    Given diameter=14

    So r=7,volume on solving=1437.3

    CASE-2:

    Given radius r’=3.5,volume on solving=179.6

    Now dividing volume in case 1 and 2

    We get,1437.3/179.6=8.002

    Therefore 8 spheres can be formed(approximately)

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