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Question
A solid iron cuboidal block of dimensions 4.4 m × 2.6 m × 1 m is recast into a cylindrical pipe of radius 100 cm. The length of the pipe is:
A solid iron cuboidal block of dimensions 4.4 m × 2.6 m × 1 m is recast into a cylindrical pipe of radius 100 cm. The length of the pipe is:
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Solution
The correct option is A 11.2
cm
Since the pipe is obtained from the block, the volume of both objects will be exactly equal to each other. So,
4.4 m × 2.6 m × 1 m = π × (12) × h [Note the conversion into same units]
h = 3.64 m
11.2 cm
Since the pipe is obtained from the block, the volume of both objects will be exactly equal to each other. So,
4.4 m × 2.6 m × 1 m = π × (12) × h [Note the conversion into same units]
h = 3.64 m
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