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CBSE XII | PHYSICS
Sample Paper – 5
CBSE
Class XII Physics
Sample Paper - 5
Time: 3 Hours Maximum Marks: 70
General Instructions:
1. All questions are compulsory. There are 27 questions in all.
2. This question paper has four sections: Section A, Section B, Section C and Section D.
3. Section A contains five questions of one mark each, Section B contains seven questions of
two marks each, Section C contains twelve questions of three marks each, and Section D
contains three questions of five marks each.
4. There is no overall choice. However, internal choice has been provided in two questions
of one mark, two questions of two marks, four questions of three marks and three
questions of five marks weightage. You have to attempt only one of the choices in such
questions.
5. You may use the following values of physical constants wherever necessary:
8
34
19
71
12 2 1 2
0
9 2 2
0
31
27
3 10 /
6.63 10
1.6 10
4 10
8.854 10
1
9 10
4
9.1 10
1.675 10
o
e
c m s
h Js
eC
µ T m A
C N m
N m C
m kg
mass of neutron kg
mass of prot
?
?
??
?
?
??
? ? ?
?
?
?
??
??
??
??
??
??
??
??
27
23
23 1
1.673 10
’ 6.023 10
1.38 10
on kg
Avogadro s number per gram mole
Boltzmann constant JK
?
??
??
??
??
Section A
1. A uniform electric field E exists between two charged plates as shown in the figure.
What would be the work done in moving a charge q along the closed rectangular path
ABCDA? (1)
Page 2
CBSE XII | PHYSICS
Sample Paper – 5
CBSE
Class XII Physics
Sample Paper - 5
Time: 3 Hours Maximum Marks: 70
General Instructions:
1. All questions are compulsory. There are 27 questions in all.
2. This question paper has four sections: Section A, Section B, Section C and Section D.
3. Section A contains five questions of one mark each, Section B contains seven questions of
two marks each, Section C contains twelve questions of three marks each, and Section D
contains three questions of five marks each.
4. There is no overall choice. However, internal choice has been provided in two questions
of one mark, two questions of two marks, four questions of three marks and three
questions of five marks weightage. You have to attempt only one of the choices in such
questions.
5. You may use the following values of physical constants wherever necessary:
8
34
19
71
12 2 1 2
0
9 2 2
0
31
27
3 10 /
6.63 10
1.6 10
4 10
8.854 10
1
9 10
4
9.1 10
1.675 10
o
e
c m s
h Js
eC
µ T m A
C N m
N m C
m kg
mass of neutron kg
mass of prot
?
?
??
?
?
??
? ? ?
?
?
?
??
??
??
??
??
??
??
??
27
23
23 1
1.673 10
’ 6.023 10
1.38 10
on kg
Avogadro s number per gram mole
Boltzmann constant JK
?
??
??
??
??
Section A
1. A uniform electric field E exists between two charged plates as shown in the figure.
What would be the work done in moving a charge q along the closed rectangular path
ABCDA? (1)
CBSE XII | PHYSICS
Sample Paper – 5
2. How does the (i) pole strength and (ii) magnetic moment of each part of a bar magnet
change if it is cut into two equal pieces transverse to its length? (1)
OR
The figure given below shows two positions of a loop PQR in a perpendicular uniform
magnetic field. In which position of the coil is there an induced emf? (1)
3. Why are microwaves used in RADAR? (1)
OR
Arrange these in the decreasing order of frequency: microwaves, infra red waves, x-
rays, visible rays (1)
4. The image of a candle is formed by a convex lens on a screen. The lower half of the lens
is painted black to make it completely opaque. Draw the ray diagram to show the image
formation. How will this image be different from the one obtained when the lens is not
painted black? (1)
Page 3
CBSE XII | PHYSICS
Sample Paper – 5
CBSE
Class XII Physics
Sample Paper - 5
Time: 3 Hours Maximum Marks: 70
General Instructions:
1. All questions are compulsory. There are 27 questions in all.
2. This question paper has four sections: Section A, Section B, Section C and Section D.
3. Section A contains five questions of one mark each, Section B contains seven questions of
two marks each, Section C contains twelve questions of three marks each, and Section D
contains three questions of five marks each.
4. There is no overall choice. However, internal choice has been provided in two questions
of one mark, two questions of two marks, four questions of three marks and three
questions of five marks weightage. You have to attempt only one of the choices in such
questions.
5. You may use the following values of physical constants wherever necessary:
8
34
19
71
12 2 1 2
0
9 2 2
0
31
27
3 10 /
6.63 10
1.6 10
4 10
8.854 10
1
9 10
4
9.1 10
1.675 10
o
e
c m s
h Js
eC
µ T m A
C N m
N m C
m kg
mass of neutron kg
mass of prot
?
?
??
?
?
??
? ? ?
?
?
?
??
??
??
??
??
??
??
??
27
23
23 1
1.673 10
’ 6.023 10
1.38 10
on kg
Avogadro s number per gram mole
Boltzmann constant JK
?
??
??
??
??
Section A
1. A uniform electric field E exists between two charged plates as shown in the figure.
What would be the work done in moving a charge q along the closed rectangular path
ABCDA? (1)
CBSE XII | PHYSICS
Sample Paper – 5
2. How does the (i) pole strength and (ii) magnetic moment of each part of a bar magnet
change if it is cut into two equal pieces transverse to its length? (1)
OR
The figure given below shows two positions of a loop PQR in a perpendicular uniform
magnetic field. In which position of the coil is there an induced emf? (1)
3. Why are microwaves used in RADAR? (1)
OR
Arrange these in the decreasing order of frequency: microwaves, infra red waves, x-
rays, visible rays (1)
4. The image of a candle is formed by a convex lens on a screen. The lower half of the lens
is painted black to make it completely opaque. Draw the ray diagram to show the image
formation. How will this image be different from the one obtained when the lens is not
painted black? (1)
CBSE XII | PHYSICS
Sample Paper – 5
5. In an experiment on the photoelectric effect, the following graphs were obtained
between the photoelectric current (I) and the anode potential (V). Name the
characteristic of the incident radiation which was kept constant in this experiment.
(1)
Section B
6. Four point charges are placed at four corners of a square in the two ways (i) and (ii)
shown below. Will the (a) electric field and (b) electric potential at the centre of the
square be the same or different in the two configurations and why? (2)
OR
Two identical metallic surfaces A and B are kept parallel to each other in air, separated
by a distance of 1.0 cm as shown in the figure.
Page 4
CBSE XII | PHYSICS
Sample Paper – 5
CBSE
Class XII Physics
Sample Paper - 5
Time: 3 Hours Maximum Marks: 70
General Instructions:
1. All questions are compulsory. There are 27 questions in all.
2. This question paper has four sections: Section A, Section B, Section C and Section D.
3. Section A contains five questions of one mark each, Section B contains seven questions of
two marks each, Section C contains twelve questions of three marks each, and Section D
contains three questions of five marks each.
4. There is no overall choice. However, internal choice has been provided in two questions
of one mark, two questions of two marks, four questions of three marks and three
questions of five marks weightage. You have to attempt only one of the choices in such
questions.
5. You may use the following values of physical constants wherever necessary:
8
34
19
71
12 2 1 2
0
9 2 2
0
31
27
3 10 /
6.63 10
1.6 10
4 10
8.854 10
1
9 10
4
9.1 10
1.675 10
o
e
c m s
h Js
eC
µ T m A
C N m
N m C
m kg
mass of neutron kg
mass of prot
?
?
??
?
?
??
? ? ?
?
?
?
??
??
??
??
??
??
??
??
27
23
23 1
1.673 10
’ 6.023 10
1.38 10
on kg
Avogadro s number per gram mole
Boltzmann constant JK
?
??
??
??
??
Section A
1. A uniform electric field E exists between two charged plates as shown in the figure.
What would be the work done in moving a charge q along the closed rectangular path
ABCDA? (1)
CBSE XII | PHYSICS
Sample Paper – 5
2. How does the (i) pole strength and (ii) magnetic moment of each part of a bar magnet
change if it is cut into two equal pieces transverse to its length? (1)
OR
The figure given below shows two positions of a loop PQR in a perpendicular uniform
magnetic field. In which position of the coil is there an induced emf? (1)
3. Why are microwaves used in RADAR? (1)
OR
Arrange these in the decreasing order of frequency: microwaves, infra red waves, x-
rays, visible rays (1)
4. The image of a candle is formed by a convex lens on a screen. The lower half of the lens
is painted black to make it completely opaque. Draw the ray diagram to show the image
formation. How will this image be different from the one obtained when the lens is not
painted black? (1)
CBSE XII | PHYSICS
Sample Paper – 5
5. In an experiment on the photoelectric effect, the following graphs were obtained
between the photoelectric current (I) and the anode potential (V). Name the
characteristic of the incident radiation which was kept constant in this experiment.
(1)
Section B
6. Four point charges are placed at four corners of a square in the two ways (i) and (ii)
shown below. Will the (a) electric field and (b) electric potential at the centre of the
square be the same or different in the two configurations and why? (2)
OR
Two identical metallic surfaces A and B are kept parallel to each other in air, separated
by a distance of 1.0 cm as shown in the figure.
CBSE XII | PHYSICS
Sample Paper – 5
Surface A is given a positive potential of 10 V and the other surface B is earthed.
(i) What is the magnitude and direction of the uniform electric field between points y
and z?
(ii) What is the work done in moving a charge of 20 C ? from point x to point y? (2)
7. The I –V characteristics of a resistor are observed to deviate from the straight line for
higher values of current as shown below. Why is this so? (2)
8.
In the circuit shown below, R represents a resistance. If the frequency ? of the supply is
doubled, how should the value of C and L be changed so that the glow in the bulb
remains unchanged?
OR
A coil L with air as the core and a bulb B are connected in series to the AC mains as
shown in the given figure.
Page 5
CBSE XII | PHYSICS
Sample Paper – 5
CBSE
Class XII Physics
Sample Paper - 5
Time: 3 Hours Maximum Marks: 70
General Instructions:
1. All questions are compulsory. There are 27 questions in all.
2. This question paper has four sections: Section A, Section B, Section C and Section D.
3. Section A contains five questions of one mark each, Section B contains seven questions of
two marks each, Section C contains twelve questions of three marks each, and Section D
contains three questions of five marks each.
4. There is no overall choice. However, internal choice has been provided in two questions
of one mark, two questions of two marks, four questions of three marks and three
questions of five marks weightage. You have to attempt only one of the choices in such
questions.
5. You may use the following values of physical constants wherever necessary:
8
34
19
71
12 2 1 2
0
9 2 2
0
31
27
3 10 /
6.63 10
1.6 10
4 10
8.854 10
1
9 10
4
9.1 10
1.675 10
o
e
c m s
h Js
eC
µ T m A
C N m
N m C
m kg
mass of neutron kg
mass of prot
?
?
??
?
?
??
? ? ?
?
?
?
??
??
??
??
??
??
??
??
27
23
23 1
1.673 10
’ 6.023 10
1.38 10
on kg
Avogadro s number per gram mole
Boltzmann constant JK
?
??
??
??
??
Section A
1. A uniform electric field E exists between two charged plates as shown in the figure.
What would be the work done in moving a charge q along the closed rectangular path
ABCDA? (1)
CBSE XII | PHYSICS
Sample Paper – 5
2. How does the (i) pole strength and (ii) magnetic moment of each part of a bar magnet
change if it is cut into two equal pieces transverse to its length? (1)
OR
The figure given below shows two positions of a loop PQR in a perpendicular uniform
magnetic field. In which position of the coil is there an induced emf? (1)
3. Why are microwaves used in RADAR? (1)
OR
Arrange these in the decreasing order of frequency: microwaves, infra red waves, x-
rays, visible rays (1)
4. The image of a candle is formed by a convex lens on a screen. The lower half of the lens
is painted black to make it completely opaque. Draw the ray diagram to show the image
formation. How will this image be different from the one obtained when the lens is not
painted black? (1)
CBSE XII | PHYSICS
Sample Paper – 5
5. In an experiment on the photoelectric effect, the following graphs were obtained
between the photoelectric current (I) and the anode potential (V). Name the
characteristic of the incident radiation which was kept constant in this experiment.
(1)
Section B
6. Four point charges are placed at four corners of a square in the two ways (i) and (ii)
shown below. Will the (a) electric field and (b) electric potential at the centre of the
square be the same or different in the two configurations and why? (2)
OR
Two identical metallic surfaces A and B are kept parallel to each other in air, separated
by a distance of 1.0 cm as shown in the figure.
CBSE XII | PHYSICS
Sample Paper – 5
Surface A is given a positive potential of 10 V and the other surface B is earthed.
(i) What is the magnitude and direction of the uniform electric field between points y
and z?
(ii) What is the work done in moving a charge of 20 C ? from point x to point y? (2)
7. The I –V characteristics of a resistor are observed to deviate from the straight line for
higher values of current as shown below. Why is this so? (2)
8.
In the circuit shown below, R represents a resistance. If the frequency ? of the supply is
doubled, how should the value of C and L be changed so that the glow in the bulb
remains unchanged?
OR
A coil L with air as the core and a bulb B are connected in series to the AC mains as
shown in the given figure.
CBSE XII | PHYSICS
Sample Paper – 5
The bulb glows with some brightness. How would the glow of the bulb change if an iron
rod was inserted in the coil? Give reason in support of your answer. (2)
9. Experimental observations have shown that X-rays
(i) travel in vacuum with a speed of
8
3 10 / . ms ?
(j) exhibit the phenomenon of diffraction and can be polarised
What conclusions can be drawn about the nature of X-rays from each of these
observations? (2)
10. Why is a semiconductor damaged by a strong current? (2)
11. A message signal of frequency 10 kHz is used to modulate a carrier of frequency 1 MHz.
Find the side bands produced. (2)
12. Write the relation between the angle of incidence (i ), the angle of emergence (e ), the
angle of prism (A ) and the angle of deviation ( ? ) for rays undergoing refraction
through a prism. What is the relation between refractive index of the material of a
prism in terms of A and ?. (2)
Section C
13. When two known resistances, R andS , are connected in the left and right gaps of a
meter bridge, the balance point is found at a distance ‘l ’ from the zero end of the meter
bridge wire. An unknown resistance X is connected in parallel to the resistances, and
the balance point is now found at a distance
2
l from the zero end of the meter bridge
wire. Obtain a formula of X in terms of
12
, and . l l S
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FAQs on Physics: Sample Question Paper- 5, Class 12 - Physics for Grade 12
| 1. What are some important topics to study for the Class 12 Physics exam? |  |
Ans. Some important topics to study for the Class 12 Physics exam include electromagnetism, optics, modern physics, mechanics, and thermodynamics.
| 2. How can I prepare effectively for the Class 12 Physics exam? | |
Ans. To prepare effectively for the Class 12 Physics exam, it is important to understand the concepts thoroughly. Practice solving numerical problems and equations regularly, revise the important formulas, and solve previous year question papers to get familiar with the exam pattern.
| 3. What are some common mistakes students make in the Class 12 Physics exam? | |
Ans. Some common mistakes students make in the Class 12 Physics exam include not reading the questions carefully, not showing proper units in calculations, not using the correct formula for a given problem, and not labeling diagrams properly.
| 4. How can I improve my problem-solving skills in Physics? | |
Ans. To improve problem-solving skills in Physics, practice solving a variety of numerical problems regularly. Break down complex problems into smaller steps, understand the given information, and use the appropriate formulas and concepts to solve the problem. Seek help from teachers or classmates if needed.
| 5. Are there any important tips for time management during the Class 12 Physics exam? | |
Ans. Yes, here are some important tips for time management during the Class 12 Physics exam:
- Read the entire question paper carefully and allocate time for each section accordingly.
- Start with the questions you are most confident about to save time.
- If you get stuck on a difficult question, move on to the next one and come back to it later.
- Keep track of time and ensure that you complete all the questions within the allocated time.
- Leave some time at the end to review your answers and make any necessary corrections.
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Nov 09, 2024 Last updated |
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