alleryएक पूर्ण सिलेंडर (r=6,h=8 सेमी) में समान r,h का एक ठोस शंकु होता है। इसके पानी को एक सिलेंडर r=4 सेमी में डालें। नई गहराई?
A12 cm
B8 cm
C6 cm
D18 cm
Answer & Solution
Correct answer: A. 12 cm
पानी की मात्रा π×6²×8 − है
(1/3)π×6²×8 = 192π सेमी ³;
आधार क्षेत्रफल 16π से विभाजित करने पर गहराई 12 cm मिलती है।
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