A sphere of radius r, density ρ and specific heat capacity c, is hung by a thermally…
Physics · JEE Main · NTA Exams — Thermodynamics
A sphere of radius r, density ρ and specific heat capacity c, is hung by a thermally insulated thread in an enclosure which is kept at a lower temperature than the sphere. The rate of temperature drop of the sphere is proportional to
- \(\frac{c}{r^{3} \rho}\)
- \(\frac{1}{r^{3} \rho c}\)
- \(3 \text { rpc }\)
- \(\frac{1}{\mathrm{rpc}}\)
Answer
(B) 1 r^ 3 c
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- Two metallic plates of equal lengths and thermal conductivities k 1 and k 2 are put together such that their…
- The radius of a metal sphere at room temperature T is R, and the coefficient of linear expansion of the metal…
- Two rods of different materials having coefficients of thermal expansion α 1 and α 2 and Young’s moduli Y 1…
- What should be the lengths of steel and copper rods at 0°C so that the length of the steel rod is 5 cm longer…
- Assuming the sun to be a spherical body of radius R at a temperature of T K, evaluate the total radiant…
- Newton’s law of cooling leads us to the following expression,
- The radius of a ring is R and its coefficient of linear expansion is α. If the temperature of ring increases…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason…
More Thermodynamics questions · Browse all practice questions