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Question

The external radius of a hollow sphere made of lead sheet of 1cm, thickness I 6cm. If melting the sphere, a solid a right circular rod of 2cm. radius Is made, then let us calculate the length of the rod.

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Q- Half of a tank of 21dcm. length 11dcm, breadth and 6dcm, depth is full of water. Now of 100 iron spheres of 21cm diameter is immersed completely into the water of the tank, the let us calculate the rise of water level in dcm.

Chapter: Real Life Problems Related to Different Solid Objects

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