A metallio sphere of diameter 1 cm is to be melted and recasted into a

1.	A metallio sphere of diameter 1 cm is to be melted and recasted into a hollowthickness 1 mm Find the internal and extemal radi of the sphere
Answer» DIAMETER OF METALLIC SPHERE = OUTER DIAMETER OF HOLLOW SPHERE = 1 cm THEREFORE OUTER RADII = 0.5 cm = 5mm THICKNESS = 1mm THEREFORE INNER RADII = OUTER RADII - THICKNESS = 5 mm - 1mm = 4mm

A metallio sphere of diameter 1 cm is to be melted and recasted into a hollowthickness 1 mm Find the internal and extemal radi of the sphere

Answer»

DIAMETER OF METALLIC SPHERE = OUTER DIAMETER OF HOLLOW SPHERE = 1 cm THEREFORE OUTER RADII = 0.5 cm = 5mm

THICKNESS = 1mm

THEREFORE INNER RADII = OUTER RADII - THICKNESS

= 5 mm - 1mm

= 4mm