Student Login

Home›Chapters›Heat Transfer and Radiation PYQs›Heat Conduction›Question 4

MHT CET 2026 (15 Apr, Shift 2) · Heat Conduction

Heat Conduction question from MHT CET 2026 (15 Apr, Shift 2)

Q4MHT CET 2026 · 15 APR · SHIFT 2Easy

Heat Conduction

The ratio of the thermal conductivity of two rods of different materials is 6:5. The two rods of same area of cross section and same thermal resistance will have the length in the ratio

Show answer and solution

Answer: (b)

Thermal resistance $R = \frac{L}{KA}$ ; same $R$ and $A$ gives $L \propto K$ .
$\frac{L_1}{L_2} = \frac{K_1}{K_2} = \frac{6}{5}$
So the answer is (b) $6:5$ .

Report a mistake

More questions on Heat Conduction

Rate of flow of heat through a cylindrical rod is ' H₁ '. The temperature at the ends of…MHT CET 2026 (16 Apr, Shift 1)
Three rods made of the same material and the same cross-sectional areas have been joined…MHT CET 2026 (12 May, Shift 1)
Two rods of same length, radius and material transfer a given amount of heat in 't'…MHT CET 2026 (20 Apr, Shift 1)
In a composite slab there are two materials having coefficients of thermal conductivity K…MHT CET 2026 (17 Apr, Shift 2)
Consider two rods 1 and 2 of same length. They have different specific heats (C₁, C₂)…MHT CET 2026 (17 Apr, Shift 1)
Rods x and y of equal dimensions but of different materials are joined as shown in…JEE Main 2026 (22 Jan, Shift 1)
Three identical heat conducting rods are connected in series as shown in the figure. The…MHT CET 2026 (11 Apr, Shift 1)
The two ends of a rod of length ' x ' and uniform cross-sectional area ' A ' are kept at…MHT CET 2025 (22 Apr, Shift 2)