Question
Download Solution PDFA solid metallic hemisphere of radius 5.4 cm is melted and recast into a right circular cylinder of radius 12 cm. What is the height (in cm) of the cylinder?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
A solid metallic hemisphere of radius 5.4 cm is melted and recast into a right circular cylinder of radius 12 cm.
Formula used:
Volume of hemisphere =
Volume of cylinder =
Calculation:
Volume of hemisphere = Volume of cylinder
⇒
⇒
⇒
⇒ 104.976 = 144h
⇒ h =
⇒ h = 0.729
∴ The correct answer is option (2).
Last updated on Jun 21, 2025
-> The Railway Recruitment Board has released the RPF Constable 2025 Result on 19th June 2025.
-> The RRB ALP 2025 Notification has been released on the official website.
-> The Examination was held from 2nd March to 18th March 2025. Check the RPF Exam Analysis Live Updates Here.