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1
JEE Main 2021 (Online) 16th March Evening Shift
+4
-1
A bimetallic strip consists of metals A and B. It is mounted rigidly as shown. The metal A has higher coefficient of expansion compared to that of metal B. When the bimetallic strip is placed in a cold bath, it will :

A
Neither bend nor shrink
B
Bend towards the left
C
Not bend but shrink
D
Bend towards the right
2
JEE Main 2021 (Online) 16th March Morning Shift
+4
-1
In thermodynamics, heat and work are :
A
Path functions
B
Point functions
C
Extensive thermodynamics state variables
D
Intensive thermodynamic state variables
3
JEE Main 2021 (Online) 16th March Morning Shift
+4
-1
The volume V of an enclosure contains a mixture of three gases, 16 g of oxygen, 28 g of nitrogen and 44 g of carbon dioxide at absolute temperature T. Consider R as universal gas constant. The pressure of the mixture of gases is :
A
$${{3RT} \over V}$$
B
$${{4RT} \over V}$$
C
$${{88RT} \over V}$$
D
$${5 \over 2}{{RT} \over V}$$
4
JEE Main 2021 (Online) 26th February Evening Shift
The internal energy (U), pressure (P) and volume (V) of an ideal gas are related as U $$=$$ 3PV + 4. The gas is :