1
WB JEE 2022
MCQ (Single Correct Answer)
+1
-0.25
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Consider a thermodynamic process where integral energy $$U = A{P^2}V$$ (A = constant). If the process is performed adiabatically, then

A
AP2(V + 1) = constant
B
(AP + 1)2V = constant
C
(AP + 1)V2 = constant
D
$${V \over {{{(AP + 1)}^2}}}$$ = constant
2
WB JEE 2022
MCQ (Single Correct Answer)
+1
-0.25
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One mole of a diatomic ideal gas undergoes a process shown in P-V diagram. The total heat given to the gas (ln 2 = 0.7) is

WB JEE 2022 Physics - Heat and Thermodynamics Question 11 English

A
2.5 P0V0
B
3.9 P0V0
C
1.1 P0V0
D
1.4 P0V0
3
WB JEE 2022
MCQ (Single Correct Answer)
+1
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Two charges, each equal to $$-$$q are kept at ($$-$$a, 0) and (a, 0). A charge q is placed at the origin. If q is given a small displacement along y direction, the force acting on q is proportional to

A
y
B
$$-$$y
C
$${1 \over y}$$
D
$$-$$$${1 \over y}$$
4
WB JEE 2022
MCQ (Single Correct Answer)
+1
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WB JEE 2022 Physics - Electrostatics Question 10 English

A neutral conducting solid sphere of radius R has two spherical cavities of radius a and b as shown in the figure. Centre to centre distance between two cavities is c. qa and qb charges are placed at the centres of cavities respectively. The force between qa and qb is

A
$${1 \over {4\pi {\varepsilon _0}}}{{{q_a}{q_b}} \over {{c^2}}}$$
B
$${1 \over {4\pi {\varepsilon _0}}}{q_a}{q_b}\left( {{1 \over {{a^2}}} + {1 \over {{b^2}}}} \right)$$
C
zero
D
insufficient data
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