Student Login

Home›Chapters›Heat Transfer and Radiation PYQs›Heat Conduction›Question 3

MHT CET 2026 (18 Apr, Shift 1) · Heat Conduction

Heat Conduction question from MHT CET 2026 (18 Apr, Shift 1)

Q3MHT CET 2026 · 18 APR · SHIFT 1Easy

Heat Conduction

The ratio of thermal conductivity of two rods of different materials is $4 : 3$ . The two rods have same area of cross-section and same thermal resistance. The lengths of rods are in the ratio

Show answer and solution

Answer: (b)

Thermal resistance $R = \frac{L}{KA}$ ; same $R$ and $A$ gives $L \propto K$ .
$\frac{L_1}{L_2} = \frac{K_1}{K_2} = \frac{4}{3}$
So the answer is (b) $4:3$ .

Report a mistake

More questions on Heat Conduction

The ratio of the thermal conductivity of two rods of different materials is 6:5. The two…MHT CET 2026 (15 Apr, Shift 2)
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)