1
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Change Language
A liquid of bulk modulus k is compressed by applying an external pressure such that its density increases by 0.01%. The pressure applied on the liquid is
A
$${k \over {10000}}$$
B
$${k \over {1000}}$$
C
1000 k
D
0.01 k
2
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Change Language
Temperature of an ideal gas, initially at 27$$^\circ$$C, is raised by 6$$^\circ$$C. The rms velocity of the gas molecules will
A
increase by nearly 2%
B
decrease by nearly 2%
C
increase by nearly 1%
D
decrease by nearly 1%
3
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Change Language
2 moles of an ideal monoatomic gas is carried from a state (p0, V0) to state (2p0, 2V0) along a straight line path in a p-V diagram. The amount of heat absorbed by the gas in the process is given by
A
3 p0V0
B
$${9 \over 2}$$ p0V0
C
6 p0V0
D
$${3 \over 2}$$ p0V0
4
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Change Language
A solid rectangular sheet has two different coefficients of linear expansion $$\alpha$$1 and $$\alpha$$2 along its length and breadth respectively. The coefficient of surface expansion is (for $$\alpha$$1 t << 1, $$\alpha$$2t < <1)
A
$${{{\alpha _1} + {\alpha _2}} \over 2}$$
B
$$2({\alpha _1} + {\alpha _2})$$
C
$${{4{\alpha _1}{\alpha _2}} \over {{\alpha _1} + {\alpha _2}}}$$
D
$${\alpha _1} + {\alpha _2}$$
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