1
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
A gas is compressed isothermally to half its initial volume. The same gas is compressed separately through an adiabatic process until its volume is again reduced to half. Then
A
Compressing the gas isothermally or adiabatically will require the same amount of work.
B
Which of the case (whether compression through isothermal or through adiabatic process) requires more work will depend upon the atomicity of the gas.
C
Compressing the gas isothermally will require more work to be done.
D
Compressing the gas through adiabatic process will require more work to be done.
2
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
The molecules of a given mass of a gas have r.m.s. velocity of 2000 m s$$-$$1 at 27oC and 1.0 $$ \times $$ 105 N m$$-$$2 pressure. When the temperature and pressure of the gas are respectively, 127oC and 0.05 $$ \times $$ 105 N m$$-$$2, the r.m.s. velocity of its molecules in m s$$-$$1 is
A
$${{100\sqrt 2 } \over 3}$$
B
$${{100} \over 3}$$
C
$$100\sqrt 2 $$
D
$${{400} \over {\sqrt 3 }}$$
3
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
A refrigerator works between 4oC and 30oC. It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerated space constant. The power required is (Take 1 cal = 4.2 Joules)
A
236.5 W
B
2365 W
C
2.365 W
D
23.65 W
4
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A siren emitting a sound of frequency 800 Hz moves away from an observer towards a cliff at a speed of 15 m s$$-$$1. Then, the frequency of sound that the observer hears in the echo reflected from the cliff is

(Take velocity of sound in air = 330 m s$$-$$1)
A
838 Hz
B
885 Hz
C
765 Hz
D
800 Hz
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Medical
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Graduate Aptitude Test in Engineering
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