Physics · 2021
JEE Main · 27 August 2021, Shift 2 · Q7
The height of victoria falls is 63 m. What is the difference in temperature of water at the top and at the bottom of fall? [Given 1 cal =4.2 J and…
The height of victoria falls is $\displaystyle 63$ m. What is the difference in temperature of water at the top and at the bottom of fall ?
[Given $\displaystyle 1 \mathrm{cal}=4.2 \mathrm{~J}$ and specific heat of water $\displaystyle =1 \mathrm{cal} \mathrm{g}^{-1}{ }^{\circ} \mathrm{C}^{-1}$ ]
Official answer
(2)
0.$\displaystyle 147$°C
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