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Question

A cylindrical vessel of 90 cm height is kept filled up to the brim. It has four holes 1,2,3 and 4 which are respectively at heights of 20 cm,30 cm,45 cm and 50 cm from the horizontal floor PQ. The water falling on the ground at the maximum horizontal distance from the vessel comes from


A
hole number 4
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B
hole number 3
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C
hole number 2
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D
hole number 1
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Solution

The correct option is B hole number 3
Given,
Height of hole 1 from floor, h1=20 cm
Height of hole 2 from floor, h2=30 cm
Height of hole 3 from floor, h3=45 cm
Height of hole 4 from floor, h4=50 cm


We know that for maximum horizontal range, height of the hole from the floor is given by h=H2.


h=902=45 cm=h3
Therefore, water coming out from hole 3 will fall on the ground at maximum horizontal range.

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