KVS ZONAL INSTITUTE OF EDUCATION AND TRAINING CHANDIGARH
PRE-BOARD PRACTICE PAPER PHYSICS XII (042)
2023-24 SUMMER KV
Maximum Marks: 70 Time Allowed: 3 hours.
General Instructions:
(1) There are 33 questions in all. All questions are compulsory.
(2) This question paper has 5 sections: Section A, Section B, Section
C, Section D Section E
(3) All the sections are compulsory.
(4) Section A contains 16 questions, 12 MCQ, and 04 Assertion
Reasoning based on 1 mark each,
(5) Section B contains 5 questions of two marks each,
(6) Section C contains 7 questions of three marks each,
(7) Section D contains 2 case study-based questions of four marks each
and
(8) Section E contains 3 long answer questions of five marks each.
(9) There is no overall choice. However, an internal choice has been
provided in one question in Section B, one question in Section C,
one question in each CBQ in Section D, and all three questions in
Section E.
You have to attempt only one of the choices in such questions.
(10) Use of calculators is not allowed.
(11) You may use the following values of physical constants where ever
necessary
i. c = 3 x 108 m/s
ii. me = 9.1 x10-31 kg
iii. h = 6.63 x10-34 Js
-
iv. ∈𝑜 = 8.854 x10 12 𝐶 2 𝑁 −1 𝑚−2
v. Avogadro’s number = 6.023 X 1023 per gram mole
vi. µo = 4π x 10-7 Tm𝐴−1
vii. e = 1.6 x 10-19 C
, Q. SECTION – A M
NO.
1 Electric field intensity at a point in between two parallel sheets with like 1
charges of the same surface charge densities (σ) is
(a) σ/2ε0 (b) 3σ/ε0 (c) 2σ/ε0 (d) Zero
2 An electric dipole of dipole moment 4 x 10-5 Cm, kept in a uniform electric 1
field of 10-3 NC-1, experiences a torque of 2 x10-8 Nm. The angle which the
dipole makes with the electric field is:
(a) 300 (b) 600 (c) 450 (d) 900
3 In a moving coil galvanometer, the current in the coil is 1
(a) directly proportional to the angle of deflection.
(b) inversely proportional to the angle of deflection.
(c) directly proportional to the square root of the angle of deflection.
(d) inversely proportional to the square root of the angle of deflection.
4 An A.C. source is connected to a resistive circuit. Which of the following 1
statements is true?
(A) Current leads the voltage in phase
(B) Current lags the voltage in phase
(C) Current and voltage are in the same phase
(D) Either (A) or (B) depending on the value of resistance
5 The size of the atom is proportional to 1
1/3 2/3 - 1/3
(a) A (b) A (c) A (d) A
6 The relative permeability of iron is 6000. Its magnetic susceptibility is : 1
(a) 5999 (b) 6001 (c) 6000 x 10-7 (d) 6000 x 107
7 An ammeter of resistance 0.2 ohm and range 10 mA is to be used to read 1
potential difference up to 1V. It can be converted into a voltmeter of the
desired range by connecting
(a) 96 ohm in series
(b) 92 ohm in parallel
(c) 99.8 ohm in series
(d) 90 ohms in parallel
8 The work function of a metal is 4.2 eV, its threshold wavelength is : 1
(a)4000 Å (b) 3500 Å (c) 2945 Å (d) 2500 Å
9 Which of the following statements is incorrect about of photon? 1
(a) The energy of the photon is h𝛎.
(b) Photon energy is dependent on the intensity of radiation.
PRE-BOARD PRACTICE PAPER PHYSICS XII (042)
2023-24 SUMMER KV
Maximum Marks: 70 Time Allowed: 3 hours.
General Instructions:
(1) There are 33 questions in all. All questions are compulsory.
(2) This question paper has 5 sections: Section A, Section B, Section
C, Section D Section E
(3) All the sections are compulsory.
(4) Section A contains 16 questions, 12 MCQ, and 04 Assertion
Reasoning based on 1 mark each,
(5) Section B contains 5 questions of two marks each,
(6) Section C contains 7 questions of three marks each,
(7) Section D contains 2 case study-based questions of four marks each
and
(8) Section E contains 3 long answer questions of five marks each.
(9) There is no overall choice. However, an internal choice has been
provided in one question in Section B, one question in Section C,
one question in each CBQ in Section D, and all three questions in
Section E.
You have to attempt only one of the choices in such questions.
(10) Use of calculators is not allowed.
(11) You may use the following values of physical constants where ever
necessary
i. c = 3 x 108 m/s
ii. me = 9.1 x10-31 kg
iii. h = 6.63 x10-34 Js
-
iv. ∈𝑜 = 8.854 x10 12 𝐶 2 𝑁 −1 𝑚−2
v. Avogadro’s number = 6.023 X 1023 per gram mole
vi. µo = 4π x 10-7 Tm𝐴−1
vii. e = 1.6 x 10-19 C
, Q. SECTION – A M
NO.
1 Electric field intensity at a point in between two parallel sheets with like 1
charges of the same surface charge densities (σ) is
(a) σ/2ε0 (b) 3σ/ε0 (c) 2σ/ε0 (d) Zero
2 An electric dipole of dipole moment 4 x 10-5 Cm, kept in a uniform electric 1
field of 10-3 NC-1, experiences a torque of 2 x10-8 Nm. The angle which the
dipole makes with the electric field is:
(a) 300 (b) 600 (c) 450 (d) 900
3 In a moving coil galvanometer, the current in the coil is 1
(a) directly proportional to the angle of deflection.
(b) inversely proportional to the angle of deflection.
(c) directly proportional to the square root of the angle of deflection.
(d) inversely proportional to the square root of the angle of deflection.
4 An A.C. source is connected to a resistive circuit. Which of the following 1
statements is true?
(A) Current leads the voltage in phase
(B) Current lags the voltage in phase
(C) Current and voltage are in the same phase
(D) Either (A) or (B) depending on the value of resistance
5 The size of the atom is proportional to 1
1/3 2/3 - 1/3
(a) A (b) A (c) A (d) A
6 The relative permeability of iron is 6000. Its magnetic susceptibility is : 1
(a) 5999 (b) 6001 (c) 6000 x 10-7 (d) 6000 x 107
7 An ammeter of resistance 0.2 ohm and range 10 mA is to be used to read 1
potential difference up to 1V. It can be converted into a voltmeter of the
desired range by connecting
(a) 96 ohm in series
(b) 92 ohm in parallel
(c) 99.8 ohm in series
(d) 90 ohms in parallel
8 The work function of a metal is 4.2 eV, its threshold wavelength is : 1
(a)4000 Å (b) 3500 Å (c) 2945 Å (d) 2500 Å
9 Which of the following statements is incorrect about of photon? 1
(a) The energy of the photon is h𝛎.
(b) Photon energy is dependent on the intensity of radiation.
