NEET PractiseSet-5 NEET Notes | EduRev

NEET : NEET PractiseSet-5 NEET Notes | EduRev

 Page 1


Question Booklet CodeW
Duration: Hours 3 Max.Marks:720
1.
2.
3.
4.
5.
6.
7.
8.
. 9
Thetestisof3hoursdurationandTestBookletcontains180questions.Eachquestioncarries4marks.Foreachcorrect
response,thecandidatewillget4marks.Foreachincorrectresponse,onemarkwillbedeductedfromthetotalscores.The
maximummarksare720.
ThequestionpapercontainsthreepartsA,BandCofPhysics,ChemistryandBiologyrespectively.
PartAcontains45QuestionsfromPhysicssection.PartBcontains45QuestionsfromChemistrysection.PartCcontains90
QuestionsfromBiology.
RoughworkistobedoneonthespaceprovidedforthispurposeintheTestBookletonly.
On completion of the test, the candidate must handover the Answer Sheet to the invigilator in the Room/Hall. The
candidatesareallowedtotakeawaythisTestBookletwiththem.
Immediately fill the particulars on this page of the test booklet with blue/black ball point pen. Use of pencil is strictly
prohibited.
Blankpapers,clipboards,logtables,sliderules,calculators,cameras,cellularphones,pagersand electronicgadgetsarenot
allowed.
Youarenotallowedtogoanywherebeforetheendofthetest.
Writeyournameandrollnumberinthespaceprovidedonthebottomofthispage.
in Words
Roll Number (in Figures)
Question Booklet CodeW
5 PracticeSet
Name of the Candidate
(in Capital Letters)
AIPMT
AllIndiaPre-Medical/Pre-DentalEntranceTest
Page 2


Question Booklet CodeW
Duration: Hours 3 Max.Marks:720
1.
2.
3.
4.
5.
6.
7.
8.
. 9
Thetestisof3hoursdurationandTestBookletcontains180questions.Eachquestioncarries4marks.Foreachcorrect
response,thecandidatewillget4marks.Foreachincorrectresponse,onemarkwillbedeductedfromthetotalscores.The
maximummarksare720.
ThequestionpapercontainsthreepartsA,BandCofPhysics,ChemistryandBiologyrespectively.
PartAcontains45QuestionsfromPhysicssection.PartBcontains45QuestionsfromChemistrysection.PartCcontains90
QuestionsfromBiology.
RoughworkistobedoneonthespaceprovidedforthispurposeintheTestBookletonly.
On completion of the test, the candidate must handover the Answer Sheet to the invigilator in the Room/Hall. The
candidatesareallowedtotakeawaythisTestBookletwiththem.
Immediately fill the particulars on this page of the test booklet with blue/black ball point pen. Use of pencil is strictly
prohibited.
Blankpapers,clipboards,logtables,sliderules,calculators,cameras,cellularphones,pagersand electronicgadgetsarenot
allowed.
Youarenotallowedtogoanywherebeforetheendofthetest.
Writeyournameandrollnumberinthespaceprovidedonthebottomofthispage.
in Words
Roll Number (in Figures)
Question Booklet CodeW
5 PracticeSet
Name of the Candidate
(in Capital Letters)
AIPMT
AllIndiaPre-Medical/Pre-DentalEntranceTest
PART A PHYSICS
1. A mixture of gas consist of 2 moles of oxygen and 4 moles of argon at temperatureT. If all vibrational modes are
neglected, then the total energy of system is
a. 3RT b. 9RT c. 11RT d. None of these
2. The threshold wavelength for a metal having work function w
0
is l
0
. What is the threshold wavelength for a
metal whose work function is
w
0
2
?
a. 4
0
l b. 2
0
l c.
l
0
2
d.
l
0
4
3. The angular speed ( ) w of an electron revolving inn
th
Bohr orbit and corresponding principal quantum number
( ) n are related as
a. wµ
1
3
n
b. wµ
1
2
n
c. wµn
2
d. wµn
3
4. A uniform steel rod of 2.5 mm
2
cross-sectional area is heated through 40°C. The force exerted on it is
( / a
steel
5
1.2 10 C = ´ °
-
,g
steel
2
2 N/m = ´
1
10
1
)
a. 480 N b. 240 N c. 140 N d. None of these
5. Two particles on a wave having wavelength 2m are at the distance of 5m and 9 m respectively from origin. The
phase difference between particle is
a. p b. 2p c.
p
2
d. 4p
6. Two inductors L
1
and L
2
are connected in parallel and a time varying
current flows as shown in figure. Then the ratio of currents i i
1 2
/ at any
time t is
a.
L
L
1
2
b.
L
L
2
1
c.
L L
L L
1 2
1 2
2
( ) +
d.
( )
( )
L L
L L
1 1
2
1
2
2
2 2
+
7. In Young’s double slit experiment, the separation between slits is halved and the distance between slits and the
screen is doubled. The fringe width is
a. unchanged b. halved c. doubled d. quadrupled
8. Damping force on an oscillator is directly proportionally to the velocity, then units of the constant of
proportionality are
a. kg s b. kg s
1 -
c. kg ms
2 -
d. kg ms
1 -
9. A wave equation is given by
y
t x
= - +
æ
è
ç
ö
ø
÷
é
ë
ê
ù
û
ú
4
5 9
1
6
sin p
Where x is in cm and t in second. Which of the following is true?
a. l =1.8cm b. n =
-
4
1
ms c. a = 0.4 m d. f = 50Hz
Question Booklet CodeW
i i
i
1
L
1
L
2
i
2
Page 3


Question Booklet CodeW
Duration: Hours 3 Max.Marks:720
1.
2.
3.
4.
5.
6.
7.
8.
. 9
Thetestisof3hoursdurationandTestBookletcontains180questions.Eachquestioncarries4marks.Foreachcorrect
response,thecandidatewillget4marks.Foreachincorrectresponse,onemarkwillbedeductedfromthetotalscores.The
maximummarksare720.
ThequestionpapercontainsthreepartsA,BandCofPhysics,ChemistryandBiologyrespectively.
PartAcontains45QuestionsfromPhysicssection.PartBcontains45QuestionsfromChemistrysection.PartCcontains90
QuestionsfromBiology.
RoughworkistobedoneonthespaceprovidedforthispurposeintheTestBookletonly.
On completion of the test, the candidate must handover the Answer Sheet to the invigilator in the Room/Hall. The
candidatesareallowedtotakeawaythisTestBookletwiththem.
Immediately fill the particulars on this page of the test booklet with blue/black ball point pen. Use of pencil is strictly
prohibited.
Blankpapers,clipboards,logtables,sliderules,calculators,cameras,cellularphones,pagersand electronicgadgetsarenot
allowed.
Youarenotallowedtogoanywherebeforetheendofthetest.
Writeyournameandrollnumberinthespaceprovidedonthebottomofthispage.
in Words
Roll Number (in Figures)
Question Booklet CodeW
5 PracticeSet
Name of the Candidate
(in Capital Letters)
AIPMT
AllIndiaPre-Medical/Pre-DentalEntranceTest
PART A PHYSICS
1. A mixture of gas consist of 2 moles of oxygen and 4 moles of argon at temperatureT. If all vibrational modes are
neglected, then the total energy of system is
a. 3RT b. 9RT c. 11RT d. None of these
2. The threshold wavelength for a metal having work function w
0
is l
0
. What is the threshold wavelength for a
metal whose work function is
w
0
2
?
a. 4
0
l b. 2
0
l c.
l
0
2
d.
l
0
4
3. The angular speed ( ) w of an electron revolving inn
th
Bohr orbit and corresponding principal quantum number
( ) n are related as
a. wµ
1
3
n
b. wµ
1
2
n
c. wµn
2
d. wµn
3
4. A uniform steel rod of 2.5 mm
2
cross-sectional area is heated through 40°C. The force exerted on it is
( / a
steel
5
1.2 10 C = ´ °
-
,g
steel
2
2 N/m = ´
1
10
1
)
a. 480 N b. 240 N c. 140 N d. None of these
5. Two particles on a wave having wavelength 2m are at the distance of 5m and 9 m respectively from origin. The
phase difference between particle is
a. p b. 2p c.
p
2
d. 4p
6. Two inductors L
1
and L
2
are connected in parallel and a time varying
current flows as shown in figure. Then the ratio of currents i i
1 2
/ at any
time t is
a.
L
L
1
2
b.
L
L
2
1
c.
L L
L L
1 2
1 2
2
( ) +
d.
( )
( )
L L
L L
1 1
2
1
2
2
2 2
+
7. In Young’s double slit experiment, the separation between slits is halved and the distance between slits and the
screen is doubled. The fringe width is
a. unchanged b. halved c. doubled d. quadrupled
8. Damping force on an oscillator is directly proportionally to the velocity, then units of the constant of
proportionality are
a. kg s b. kg s
1 -
c. kg ms
2 -
d. kg ms
1 -
9. A wave equation is given by
y
t x
= - +
æ
è
ç
ö
ø
÷
é
ë
ê
ù
û
ú
4
5 9
1
6
sin p
Where x is in cm and t in second. Which of the following is true?
a. l =1.8cm b. n =
-
4
1
ms c. a = 0.4 m d. f = 50Hz
Question Booklet CodeW
i i
i
1
L
1
L
2
i
2
10. In figure shown, there are two convex lenses L
1
and L
2
having focal length F
1
and F
2
respectively. The distance between L
1
and L
2
will be
a. F F
1 2
+ b. F F
1 2
-
c. F
1
d. F
2
11. The radioactivity of a sample is I
1
at a time t
1
and I
2
at a time t
2
. If the half-life of the sample is t
1 2 /
then the
number of nuclei that have disintegrated in the timet t
2 1
- is proportional to
a. I t I t
1 2 2 1
- b. I I
1 2
- c.
I I
1 2
1 2
-
t
/
d. ( )
/
I I
1 2 1 2
- t
12. Two radioactive materials x
1
and x
2
have decay constants 5l and l respectively. If initially they have the same
number of nuclei, then the ratio of the number of nuclei of x
1
to that of x
2
will be
1
e
after a time.
a. l b.
1
2
l c.
1
4
l d.
e
l
13. In the case of forward biasing of a p-n junction diode, which one of the following figures correctly depicts the
direction of conventional current?
14. How many images are formed by the lens shown, if an object is kept on its axis as shown below?
a. 1 b. 2 c. 3 d. 4
15. Which of the following in case of spherical mirror depend on whether the rays are paraxiol or not?
a. Radius of curvature b. Pole c. Focus d. Principal axis
16. If in a wire of Young’s modulus Y, longitudinal strain X is produced then the potential energy stored in its unit
volume will be
a. 0.5YX
2
b. 0.5Y X
2
c. 2 YX
2
d. YX
2
17. A wire is suspended vertically from one of its ends is stretched by attaching a weight of 200 N to the lower end.
The weight stretches the wire by 1 mm. Then the elastic energy stored in wire is
a. 0.2 J b. 10 J c. 20 J d. 0.1 J
PRACTICE SET
5 143
Question Booklet CodeW
p n
+
+
+
–
–
–
p n
+
+
+
–
–
–
p n
+
+
+
–
–
–
p n
+
+
+
–
–
–
a. b. c. d.
µ
1
µ
2
O
Space for Rough Work
L
1
L
2
Page 4


Question Booklet CodeW
Duration: Hours 3 Max.Marks:720
1.
2.
3.
4.
5.
6.
7.
8.
. 9
Thetestisof3hoursdurationandTestBookletcontains180questions.Eachquestioncarries4marks.Foreachcorrect
response,thecandidatewillget4marks.Foreachincorrectresponse,onemarkwillbedeductedfromthetotalscores.The
maximummarksare720.
ThequestionpapercontainsthreepartsA,BandCofPhysics,ChemistryandBiologyrespectively.
PartAcontains45QuestionsfromPhysicssection.PartBcontains45QuestionsfromChemistrysection.PartCcontains90
QuestionsfromBiology.
RoughworkistobedoneonthespaceprovidedforthispurposeintheTestBookletonly.
On completion of the test, the candidate must handover the Answer Sheet to the invigilator in the Room/Hall. The
candidatesareallowedtotakeawaythisTestBookletwiththem.
Immediately fill the particulars on this page of the test booklet with blue/black ball point pen. Use of pencil is strictly
prohibited.
Blankpapers,clipboards,logtables,sliderules,calculators,cameras,cellularphones,pagersand electronicgadgetsarenot
allowed.
Youarenotallowedtogoanywherebeforetheendofthetest.
Writeyournameandrollnumberinthespaceprovidedonthebottomofthispage.
in Words
Roll Number (in Figures)
Question Booklet CodeW
5 PracticeSet
Name of the Candidate
(in Capital Letters)
AIPMT
AllIndiaPre-Medical/Pre-DentalEntranceTest
PART A PHYSICS
1. A mixture of gas consist of 2 moles of oxygen and 4 moles of argon at temperatureT. If all vibrational modes are
neglected, then the total energy of system is
a. 3RT b. 9RT c. 11RT d. None of these
2. The threshold wavelength for a metal having work function w
0
is l
0
. What is the threshold wavelength for a
metal whose work function is
w
0
2
?
a. 4
0
l b. 2
0
l c.
l
0
2
d.
l
0
4
3. The angular speed ( ) w of an electron revolving inn
th
Bohr orbit and corresponding principal quantum number
( ) n are related as
a. wµ
1
3
n
b. wµ
1
2
n
c. wµn
2
d. wµn
3
4. A uniform steel rod of 2.5 mm
2
cross-sectional area is heated through 40°C. The force exerted on it is
( / a
steel
5
1.2 10 C = ´ °
-
,g
steel
2
2 N/m = ´
1
10
1
)
a. 480 N b. 240 N c. 140 N d. None of these
5. Two particles on a wave having wavelength 2m are at the distance of 5m and 9 m respectively from origin. The
phase difference between particle is
a. p b. 2p c.
p
2
d. 4p
6. Two inductors L
1
and L
2
are connected in parallel and a time varying
current flows as shown in figure. Then the ratio of currents i i
1 2
/ at any
time t is
a.
L
L
1
2
b.
L
L
2
1
c.
L L
L L
1 2
1 2
2
( ) +
d.
( )
( )
L L
L L
1 1
2
1
2
2
2 2
+
7. In Young’s double slit experiment, the separation between slits is halved and the distance between slits and the
screen is doubled. The fringe width is
a. unchanged b. halved c. doubled d. quadrupled
8. Damping force on an oscillator is directly proportionally to the velocity, then units of the constant of
proportionality are
a. kg s b. kg s
1 -
c. kg ms
2 -
d. kg ms
1 -
9. A wave equation is given by
y
t x
= - +
æ
è
ç
ö
ø
÷
é
ë
ê
ù
û
ú
4
5 9
1
6
sin p
Where x is in cm and t in second. Which of the following is true?
a. l =1.8cm b. n =
-
4
1
ms c. a = 0.4 m d. f = 50Hz
Question Booklet CodeW
i i
i
1
L
1
L
2
i
2
10. In figure shown, there are two convex lenses L
1
and L
2
having focal length F
1
and F
2
respectively. The distance between L
1
and L
2
will be
a. F F
1 2
+ b. F F
1 2
-
c. F
1
d. F
2
11. The radioactivity of a sample is I
1
at a time t
1
and I
2
at a time t
2
. If the half-life of the sample is t
1 2 /
then the
number of nuclei that have disintegrated in the timet t
2 1
- is proportional to
a. I t I t
1 2 2 1
- b. I I
1 2
- c.
I I
1 2
1 2
-
t
/
d. ( )
/
I I
1 2 1 2
- t
12. Two radioactive materials x
1
and x
2
have decay constants 5l and l respectively. If initially they have the same
number of nuclei, then the ratio of the number of nuclei of x
1
to that of x
2
will be
1
e
after a time.
a. l b.
1
2
l c.
1
4
l d.
e
l
13. In the case of forward biasing of a p-n junction diode, which one of the following figures correctly depicts the
direction of conventional current?
14. How many images are formed by the lens shown, if an object is kept on its axis as shown below?
a. 1 b. 2 c. 3 d. 4
15. Which of the following in case of spherical mirror depend on whether the rays are paraxiol or not?
a. Radius of curvature b. Pole c. Focus d. Principal axis
16. If in a wire of Young’s modulus Y, longitudinal strain X is produced then the potential energy stored in its unit
volume will be
a. 0.5YX
2
b. 0.5Y X
2
c. 2 YX
2
d. YX
2
17. A wire is suspended vertically from one of its ends is stretched by attaching a weight of 200 N to the lower end.
The weight stretches the wire by 1 mm. Then the elastic energy stored in wire is
a. 0.2 J b. 10 J c. 20 J d. 0.1 J
PRACTICE SET
5 143
Question Booklet CodeW
p n
+
+
+
–
–
–
p n
+
+
+
–
–
–
p n
+
+
+
–
–
–
p n
+
+
+
–
–
–
a. b. c. d.
µ
1
µ
2
O
Space for Rough Work
L
1
L
2
18. If a car of mass 1000 kg negotiates a banked curve of radius 90 m on a frictionless road. If the angle of banking is
45°, then speed of car is
a. 10 m/s b. 5 m/s c. 20 m/s d. 30 m/s
19. A hollow cylinder has a chargeq within it. If f is the electric flux in unit of voltmeter associated with the curved
surface B, the flux linked with the plane surface A in unit of voltmeter will be
a.
1
2
0
q
e
f -
æ
è
ç
ö
ø
÷
b.
q
2
0
e
c.
f
3
d.
q
e
f
0
-
20. The thermo emfE in volts of a certain thermocouple is found to vary with temperature differenceq in °C between
the two junctions according to the relation
E = - 30
15
2
q
q
,
then the neutral temperature of thermocouple is
a. 400°C b. 225°C c. 450°C d. 30°C
21. The equivalent resistance between A and B as shown in figure is
a. 0.2W b. 0.4W c. 0.6W d. None of these
22. Three rods of same dimensions have thermal conductivities 3 2 K K , and K they are arranged as shown below
What will be the temperature T of the junction?
a.
200
3
°C b.
100
3
°C c. 75 °C d.
50
3
°C
23. If 8 dipoles of charges of magnitude ±e are placed inside the cube. The electric flux coming out of cube will be
a. 16
0
e E / b. 8
0
e E / c. e E /
0
d. zero
24. A ladder is leaned against a smooth wall and it is allowed to slip on a frictionless floor. Which figure represents
the track of its centre of mass?
144 AIPMT Practice Sets
Question Booklet CodeW
1 O
1 O 1 O
1 O
A
B
C A
3K
2K
K
50°C
0°C
100°C
T
Time Time Time Time
a. b. c. d.
Page 5


Question Booklet CodeW
Duration: Hours 3 Max.Marks:720
1.
2.
3.
4.
5.
6.
7.
8.
. 9
Thetestisof3hoursdurationandTestBookletcontains180questions.Eachquestioncarries4marks.Foreachcorrect
response,thecandidatewillget4marks.Foreachincorrectresponse,onemarkwillbedeductedfromthetotalscores.The
maximummarksare720.
ThequestionpapercontainsthreepartsA,BandCofPhysics,ChemistryandBiologyrespectively.
PartAcontains45QuestionsfromPhysicssection.PartBcontains45QuestionsfromChemistrysection.PartCcontains90
QuestionsfromBiology.
RoughworkistobedoneonthespaceprovidedforthispurposeintheTestBookletonly.
On completion of the test, the candidate must handover the Answer Sheet to the invigilator in the Room/Hall. The
candidatesareallowedtotakeawaythisTestBookletwiththem.
Immediately fill the particulars on this page of the test booklet with blue/black ball point pen. Use of pencil is strictly
prohibited.
Blankpapers,clipboards,logtables,sliderules,calculators,cameras,cellularphones,pagersand electronicgadgetsarenot
allowed.
Youarenotallowedtogoanywherebeforetheendofthetest.
Writeyournameandrollnumberinthespaceprovidedonthebottomofthispage.
in Words
Roll Number (in Figures)
Question Booklet CodeW
5 PracticeSet
Name of the Candidate
(in Capital Letters)
AIPMT
AllIndiaPre-Medical/Pre-DentalEntranceTest
PART A PHYSICS
1. A mixture of gas consist of 2 moles of oxygen and 4 moles of argon at temperatureT. If all vibrational modes are
neglected, then the total energy of system is
a. 3RT b. 9RT c. 11RT d. None of these
2. The threshold wavelength for a metal having work function w
0
is l
0
. What is the threshold wavelength for a
metal whose work function is
w
0
2
?
a. 4
0
l b. 2
0
l c.
l
0
2
d.
l
0
4
3. The angular speed ( ) w of an electron revolving inn
th
Bohr orbit and corresponding principal quantum number
( ) n are related as
a. wµ
1
3
n
b. wµ
1
2
n
c. wµn
2
d. wµn
3
4. A uniform steel rod of 2.5 mm
2
cross-sectional area is heated through 40°C. The force exerted on it is
( / a
steel
5
1.2 10 C = ´ °
-
,g
steel
2
2 N/m = ´
1
10
1
)
a. 480 N b. 240 N c. 140 N d. None of these
5. Two particles on a wave having wavelength 2m are at the distance of 5m and 9 m respectively from origin. The
phase difference between particle is
a. p b. 2p c.
p
2
d. 4p
6. Two inductors L
1
and L
2
are connected in parallel and a time varying
current flows as shown in figure. Then the ratio of currents i i
1 2
/ at any
time t is
a.
L
L
1
2
b.
L
L
2
1
c.
L L
L L
1 2
1 2
2
( ) +
d.
( )
( )
L L
L L
1 1
2
1
2
2
2 2
+
7. In Young’s double slit experiment, the separation between slits is halved and the distance between slits and the
screen is doubled. The fringe width is
a. unchanged b. halved c. doubled d. quadrupled
8. Damping force on an oscillator is directly proportionally to the velocity, then units of the constant of
proportionality are
a. kg s b. kg s
1 -
c. kg ms
2 -
d. kg ms
1 -
9. A wave equation is given by
y
t x
= - +
æ
è
ç
ö
ø
÷
é
ë
ê
ù
û
ú
4
5 9
1
6
sin p
Where x is in cm and t in second. Which of the following is true?
a. l =1.8cm b. n =
-
4
1
ms c. a = 0.4 m d. f = 50Hz
Question Booklet CodeW
i i
i
1
L
1
L
2
i
2
10. In figure shown, there are two convex lenses L
1
and L
2
having focal length F
1
and F
2
respectively. The distance between L
1
and L
2
will be
a. F F
1 2
+ b. F F
1 2
-
c. F
1
d. F
2
11. The radioactivity of a sample is I
1
at a time t
1
and I
2
at a time t
2
. If the half-life of the sample is t
1 2 /
then the
number of nuclei that have disintegrated in the timet t
2 1
- is proportional to
a. I t I t
1 2 2 1
- b. I I
1 2
- c.
I I
1 2
1 2
-
t
/
d. ( )
/
I I
1 2 1 2
- t
12. Two radioactive materials x
1
and x
2
have decay constants 5l and l respectively. If initially they have the same
number of nuclei, then the ratio of the number of nuclei of x
1
to that of x
2
will be
1
e
after a time.
a. l b.
1
2
l c.
1
4
l d.
e
l
13. In the case of forward biasing of a p-n junction diode, which one of the following figures correctly depicts the
direction of conventional current?
14. How many images are formed by the lens shown, if an object is kept on its axis as shown below?
a. 1 b. 2 c. 3 d. 4
15. Which of the following in case of spherical mirror depend on whether the rays are paraxiol or not?
a. Radius of curvature b. Pole c. Focus d. Principal axis
16. If in a wire of Young’s modulus Y, longitudinal strain X is produced then the potential energy stored in its unit
volume will be
a. 0.5YX
2
b. 0.5Y X
2
c. 2 YX
2
d. YX
2
17. A wire is suspended vertically from one of its ends is stretched by attaching a weight of 200 N to the lower end.
The weight stretches the wire by 1 mm. Then the elastic energy stored in wire is
a. 0.2 J b. 10 J c. 20 J d. 0.1 J
PRACTICE SET
5 143
Question Booklet CodeW
p n
+
+
+
–
–
–
p n
+
+
+
–
–
–
p n
+
+
+
–
–
–
p n
+
+
+
–
–
–
a. b. c. d.
µ
1
µ
2
O
Space for Rough Work
L
1
L
2
18. If a car of mass 1000 kg negotiates a banked curve of radius 90 m on a frictionless road. If the angle of banking is
45°, then speed of car is
a. 10 m/s b. 5 m/s c. 20 m/s d. 30 m/s
19. A hollow cylinder has a chargeq within it. If f is the electric flux in unit of voltmeter associated with the curved
surface B, the flux linked with the plane surface A in unit of voltmeter will be
a.
1
2
0
q
e
f -
æ
è
ç
ö
ø
÷
b.
q
2
0
e
c.
f
3
d.
q
e
f
0
-
20. The thermo emfE in volts of a certain thermocouple is found to vary with temperature differenceq in °C between
the two junctions according to the relation
E = - 30
15
2
q
q
,
then the neutral temperature of thermocouple is
a. 400°C b. 225°C c. 450°C d. 30°C
21. The equivalent resistance between A and B as shown in figure is
a. 0.2W b. 0.4W c. 0.6W d. None of these
22. Three rods of same dimensions have thermal conductivities 3 2 K K , and K they are arranged as shown below
What will be the temperature T of the junction?
a.
200
3
°C b.
100
3
°C c. 75 °C d.
50
3
°C
23. If 8 dipoles of charges of magnitude ±e are placed inside the cube. The electric flux coming out of cube will be
a. 16
0
e E / b. 8
0
e E / c. e E /
0
d. zero
24. A ladder is leaned against a smooth wall and it is allowed to slip on a frictionless floor. Which figure represents
the track of its centre of mass?
144 AIPMT Practice Sets
Question Booklet CodeW
1 O
1 O 1 O
1 O
A
B
C A
3K
2K
K
50°C
0°C
100°C
T
Time Time Time Time
a. b. c. d.
25. The coordinates of a moving particle at any time t are given by x t =a
3
andy t =b
3
. The speed of the particle at
time t is given by
a. 3
2 2
t a +b b. 3
2 2 2
t a +b c. t
2 2 2
a +b d. a +b
2 2
26. If a solenoid of magnetic moment 0.2Am
2
in a uniform magnetic field 0.16 T experiences a torque 0.016 Nm, then
angle made by a solenoid axis with magnetic field is
a. 30° b. 45° c. 60° d. 90°
27. The maximum percentage error in the determination of g g l t ( / ) = 4
2 2
p , whenl andt are measured with ± 2% and
± 3% errors is
a. 2% b. 6% c. 8% d. None of these
28. A hollow metal sphere of radius 0.01 m is charged such that potential on its surface is 80 V. The potential at
centre sphere is
a. 8 V b. 80 V c. zero d. 800 V
29. ABC is an equilateral triangle with O as its centre. F F
1 2
, and F
3
represents three forces acting along the sides
AB BC , and AC respectively. If total torque aboutO is zero, then the magnitude of F
3
is
a.
F F
1 2
2
+
b. F F
1 2
- c. F F
1 2
+ d. 2
1 2
( ) F F +
30. If a plane is flying horizontally at 100 m/s at a height of 1000 m releases a bomb from it, then velocity with which
the bomb hits the ground is
a. 72.1 m/s b. 172.1 m/s c. 197.2 m/s d. None of these
31. In the given figure the loop is fixed but straight wire can move. The straight wire will
a. remain stationary b. move towards the loop
c. move away from the loop d. rotates about the axis
32. Figure shows three spherical and equipotential surfaces A, B and C round a point charge q. The potential
differenceV V V V
A B B C
- = - . Ift
1
andt
2
be the distances between them then
a. t t
1 2
= b. t t
1 2
> c. t t
1 2
< d. t t
1 2
£
PRACTICE SET
5 145
Question Booklet CodeW
A
B
C
O
F
3
F
1
F
2
I
1
q
t
1
t
2
Space for Rough Work
Read More
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