JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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Application +4 | -1

Certain amount of heat is given to

100 \mathrm{~g}

of copper to increase its temperature by

21^{\circ} \mathrm{C}

. If the same amount of heat is given to

50 \mathrm{~g}

of water, then the rise in its temperature is

(Take, specific heat capacity of copper

=400 \mathrm{Jkg}^{-1} \mathrm{~K}^{-1}

and that for water

=4200 \mathrm{~J} \mathrm{~kg}^{-1} \mathrm{~K}^{-1}

)

View answer and explanation

Correct option: A

4^{\circ} \mathrm{C}

Option A (

4^{\circ} \mathrm{C}

) is correct because the heat gained by copper is equal to the heat gained by water, and the temperature change is calculated using

Q = mc\Delta T

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