A spherical drop of molten metal of radius 2 mm was found to solidify in 10 seconds. A similar drop of radius 4 mm would solidify in:

A spherical drop of molten metal of radius 2 mm was found to solidify

1.	A spherical drop of molten metal of radius 2 mm was found to solidify in 10 seconds. A similar drop of radius 4 mm would solidify in:
A.	14.14 second
B.	20 seconds
C.	18.30 second
D.	40 seconds
Answer» E.

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A spherical drop of molten metal of radius 2 mm was found to solidify in 10 seconds. A similar drop of radius 4 mm would solidify in:

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