A copper ball of mass $100 \mathrm{gm}$ is at a temperature $\mathrm{T}$. It is dropped in a copper calorimeter of mass $100 \mathrm{gm}$, filled with $170 \mathrm{gm}$ of water at room temperature. Subsequently, the temperature of the system is found to be $75^{\circ} \mathrm{C}$. T is given by (Given : room temperature $=30^{\circ} \mathrm{C}$, specific heat of copper $=0.1 \mathrm{cal} / \mathrm{gm}^{\circ} \mathrm{C}$

Question:

A copper ball of mass $100 \mathrm{gm}$ is at a temperature $\mathrm{T}$. It is dropped in a copper calorimeter of mass $100 \mathrm{gm}$, filled with $170 \mathrm{gm}$ of water at room temperature. Subsequently, the temperature of the system is found to be $75^{\circ} \mathrm{C}$. T is given by (Given : room temperature $=30^{\circ} \mathrm{C}$, specific heat of copper $=0.1 \mathrm{cal} / \mathrm{gm}^{\circ} \mathrm{C}$

1. $1250^{\circ} \mathrm{C}$

2. $825^{\circ} \mathrm{C}$

3. $800^{\circ} \mathrm{C}$

4. $885^{\circ} \mathrm{C}$

JEE Main Previous Year Single Correct Question of JEE Main from Physics Termal Properties of Matter chapter.

JEE Main Previous Year 2017

Correct Option: 4

Solution:

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