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A small sphere of radius 'r' falls from rest in a

viscous liquid. As a result, heat is produced

due to viscous force. The rate of production of

heat when the sphere attains its terminal

velocity, is proportional to

","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"**Sol.** $$\\text{Power} = 6\\pi\\eta r V_T \\cdot V_T = 6\\pi\\eta r V_T^2$$\n\n$$V_T \\propto r^2$$\n\n$$\\Rightarrow \\text{Power} \\propto r^5$$","url":"https://www.toppersquare.com/login"},"about":{"@type":"Thing","name":"NEET — general — General"},"educationalLevel":"HighSchool","learningResourceType":"Practice problem"}}

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