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JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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Assertion (A) : A conducting rod is placed between boiling water and ice. If rod is broken into two equal parts and two parts are connected side by side, then rate of melting of ice will increase to four times.

Reason (R) : Thermal resistance will become four times.
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Correct option: C
If Assertion is true, but the Reason is false.
Option C (If Assertion is true, but the Reason is false) is correct because the rate of melting increases four times, but the thermal resistance decreases to one-fourth.

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