1
JEE Main 2020 (Online) 7th January Evening Slot
Numerical
+4
-0
M grams of steam at 100oC is mixed with 200 g of ice at its melting point in a thermally insulated container. If it produced liquid water at 40oC [heat of vaporization of water is 540 cal/g and heat of fusion of ice is 80 cal/g] the value of M is ____
2
JEE Main 2020 (Online) 7th January Morning Slot
Numerical
+4
-0
A non-isotropic solid metal cube has coefficients of linear expansion as :
5 $$\times$$ 10-5/oC along the x-axis and 5 $$\times$$ 10-6/oC along the y and the z-axis. If the coefficient of volume expansion of the solid is C $$\times$$ 10-6/oC then the value of C is
3
JEE Main 2020 (Online) 7th January Morning Slot
Numerical
+4
-0
A Carnot engine operates between two reservoirs of temperatures 900 K and 300 K. The engine performs 1200 J of work per cycle. The heat energy (in J) delivered by the engine to the low temperature reservoir, in a cycle, is _______.
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