Question:medium
A metal rod cools at the rate of $4^\circ\text{C}/\text{min}$ when its temperature is $90^\circ\text{C}$ and the rate of $1^\circ\text{C}/\text{min}$ when its temperature is $30^\circ\text{C}$. The temperature of the surrounding is
A metal rod cools at the rate of $4^\circ\text{C}/\text{min}$ when its temperature is $90^\circ\text{C}$ and the rate of $1^\circ\text{C}/\text{min}$ when its temperature is $30^\circ\text{C}$. The temperature of the surrounding is
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The rate of cooling is directly proportional to the temperature excess $(\theta - \theta_0)$.
Updated On: Apr 28, 2026
- 20^\circ\text{C}
- 15^\circ\text{C}
- 10^\circ\text{C}
- 5^\circ\text{C}
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The Correct Option is C
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