JEE Main 2026 — Thermal Properties of Matter Question with Solution
JEE Main 2026 (22 January Shift 1)
Question
Rods and of equal dimensions but of different materials are joined as shown in figure. Temperatures of end points and are maintained at and respectively. Given the thermal conductivity of is three times of that of , the temperature at junction points and are (close to):
Choose an option
Show full solutionCorrect option: D
Correct answer
D and respectively
Step-by-step explanation
Let
...(1)
.....(2)
.....(3)
using (1) and (2)
using (1) and (3)
...(1)
.....(2)
.....(3)
using (1) and (2)
using (1) and (3)
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Thermal Properties of Matter 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 2026, covering the Thermal Properties of Matter chapter of Physics. 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.