Heat and Thermal ExpansionHard

Question

A and Bare two points on a uniform metal ring whose center is C. The angle ABC  = θ. A and B maintained at two different constant temperatures. When θ  = 180o, the rate of total heat flow from A to B is . 1.2 W When θ = 90o, this rate will be :-

Options

A.0.6 W
B.0.9 W
C.1.6 W
D.1.8 W

Solution

       
R =
HI = = 1.2 W
HII = × 1.2 = 1.6 W

Create a free account to view solution

View Solution Free
Topic: Heat and Thermal Expansion·Practice all Heat and Thermal Expansion questions

More Heat and Thermal Expansion Questions

A steel scale is to be prepared such that the millimeter intervals are to be accurate4 within 6 × 10-5 mm.The maxim...A wooden wheel of radius R is made of twosemicircular parts (see figure). The two partsare held together by a ring made ...A blackened metallic foil kept at a distance d from a spherical heater. The power absorbed by the foil is P. If the temp...A body cools in a surrounding which at a constant temperature of θ0 Assume that it obeys Newton′s law of cool...An ice box made of styrofoam (thermal conductivity = 0.01 Jm-1 s-1 K-1) is used to keep liquids cool. It has a total wal...