JEE Main 2005 — Application Of Derivatives Question with Solution
From: AIEEE 2005
Question
A spherical iron ball cm in radius is coated with a layer of ice of uniform thickness that melts at a rate of cm /min. When the thickness of ice is cm, then the rate at which the thickness of ice decreases is
Choose an option
Show full solutionCorrect option: B
Correct answer
B cm/min
Step-by-step explanation
Given that
(here
(here
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Application Of Derivatives chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2005, covering the Application Of Derivatives chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.