1
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
A rectangular film of liquid is extended from (4 cm $$ \times $$ 2 cm) to (5 cm $$ \times $$ 4 cm). If the work done is 3 $$ \times $$ 10$$-$$4 J, the value of the surface tension of the liquid is
A
0.250 N m$$-$$1
B
0.125 N m$$-$$1
C
0.2 N m$$-$$1
D
8.0 N m$$-$$1
2
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
Three liquids of densities $$\rho $$1, $$\rho $$2  and $$\rho $$3 (with $$\rho $$1 > $$\rho $$2 > $$\rho $$3), having the same value of surface tension T, rise to the same height in three identical capillaries. The angles of contact $$\theta $$1, $$\theta $$2 and $$\theta $$3 obey
A
$${\pi \over 2} > {\theta _1} > {\theta _2} > {\theta _3} \ge 0$$
B
0 $$ \le $$ $$\theta $$1 < $$\theta $$2 < $$\theta $$3 < $${\pi \over 2}$$
C
$${\pi \over 2} < {\theta _1} < {\theta _2} < {\theta _3} < \pi $$
D
$$\pi > {\theta _1} > {\theta _2} > {\theta _3} > {\pi \over 2}$$
3
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
One mole of an ideal monatomic gas undergoes a process described by the equation PV3 = constant. The heat capacity of the gas during this process is
A
$${3 \over 2}$$ R
B
$${5 \over 2}$$ R
C
2R
D
R
4
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
The temperature inside a refrigerator is t2 oC. The amount of heat delivered to the room for each joule of electrical energy consumed ideally will be
A
$${{{t_1}} \over {{t_1} - {t_2}}}$$
B
$${{{t_1} + 273} \over {{t_1} - {t_2}}}$$
C
$${{{t_2} + 273} \over {{t_1} - {t_2}}}$$
D
$${{{t_1} + {t_2}} \over {{t_1} + 273}}$$
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