Question

A solid cone of base radius 9cm and height 10 cm is lowered into a cylindrical jar of radius 10 cm,which contains water sufficient to submerge the cone completely . find the rise in water level in the jar

Answer 1

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A cylindrical jar, whose base has a radius of 15 cm, is filled with water upto a height of 20 cm. A solid iron spherical ball of radius 10 cm is dropped in the jar to submerge completely in water. Find the increase in the level of water (in cm). 


A) 51727

  B) 5527

C) 589

  D) 52527


Correct Answer:

  D) 52527


Description for Correct answerLet level of water will be increased by h cm 

π×(15)2×h=43π(10)3

Therefore, h=43×10×10×1015×15=52527cm