Consider two identical copper spheres A and B. One is placed over a th

1.	Consider two identical copper spheres A and B. One is placed over a thermally insulating plate, while the other hangs from an insulating thread.Equal amounts of heat are given to the two spheres and temperatures are recorded, then(a) TA = TB (b) TB < TA (c) TB > TA (d) cannot be concluded
Answer» Correct option is (c) T_B > T_A Part of heat given to A is used up in doing work (against) gravitational force. So, temperature of B will be slightly higher.

Consider two identical copper spheres A and B. One is placed over a thermally insulating plate, while the other hangs from an insulating thread.Equal amounts of heat are given to the two spheres and temperatures are recorded, then(a) TA = TB (b) TB < TA (c) TB > TA (d) cannot be concluded

Answer»

Correct option is (c) T_B > T_A

Part of heat given to A is used up in doing work (against) gravitational force. So, temperature of B will be slightly higher.

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Consider two identical copper spheres A and B. One is placed over a thermally insulating plate, while the other hangs from an insulating thread.Equal amounts of heat are given to the two spheres and temperatures are recorded, then(a) TA = TB (b) TB &lt; TA (c) TB &gt; TA (d) cannot be concluded

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Consider two identical copper spheres A and B. One is placed over a thermally insulating plate, while the other hangs from an insulating thread.Equal amounts of heat are given to the two spheres and temperatures are recorded, then(a) TA = TB (b) TB < TA (c) TB > TA (d) cannot be concluded