If two rods of length L and 2L, having coefficient of linear expansion α and 2α…
Physics · JEE Advanced · NTA Exams — Thermodynamics
If two rods of length L and 2L, having coefficient of linear expansion α and 2α respectively are connected end–on–end, the average coefficient of linear expansion of the composite rod, equals :
- \(\frac{3}{2} \alpha\)
- \(\frac{5}{2} \alpha\)
- \(\frac{5}{3} \alpha\)
- none of these
Answer
(C) 5 3
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The rate of flow of heat depends on the nature of material, cross-sectional area and temperature gradient. If…
- An ideal monoatomic gas is taken round the cycle ABCDA as shown in the P-V diagram (see figure). The workdone…
- A copper block of mass 2.5 kg is heated in a furnace to a temperature of 500 °C and then placed on a large…
- The coefficient of volume expansion of glycerin is 49 × 10 –5 K –1 . What is the fractional change in its…
- Find the ratio of the lengths of an iron rod and an aluminium rod for which the difference in the lengths is…
- A mass of a material exists in its solid form at its melting temperature 10°C. The following processes then…
- A body cools from 50°C to 40°C in 5 min. The surrounding temperature is 20°C. In what further time (in min)…
- The maximum energy in thermal radiations from a blackbody occurs at wavelength 4000 Å. The effective…
More Thermodynamics questions · Browse all practice questions