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Bihar Board 12th Physics Answer Key 2024 with Question Paper

The Bihar Board 12th Physics Answer Key 2024 with Answer Key PDF is available on this page. You can download the Bihar Board 12th Physics Answer Key 2024 and compare your responses.
authorImageAnanya Gupta7 Feb, 2024
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Bihar Board 12th Physics Answer Key 2024

Bihar Board 12th Physics Answer Key 2024: The Bihar School Examination Board (BSEB) is currently conducting the BSEB Intermediate exams for the academic year 2023-24. As per the timetable, the Class 12th Physics exam was held during the first shift from 9:30 a.m. to 12:15 p.m. After the examination, students are actively searching for the Bihar Board 12th Physics Answer Key 2024 on the internet. The Bihar Board 12th Physics Answer Key 2024, along with answers for all subjects, is scheduled to be released by the BSEB in March. Following the completion of the examination, we provide the unofficial BSEB Physics Answer Key 2024 on this page.

Bihar Board 12th Physics Answer Key 2024

Physics, with its extensive range of formulas and derivations, stands as the most transformative discipline, and a subject that science students must master. Those who have successfully completed the Class 12 Physics Exam are eagerly awaiting the release of the BSEB 12th Physics Answer Key 2024. Created by qualified experts from Physics Wallah, the Bihar Board 12th Physics Answer Key 2024 aims to simplify the assessment process for students. To further aid students, we have provided the Bihar Board Physics Question Paper 2024 for Sets A through J, along with the answer key.

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Bihar Board 12th Physics Question Paper 2024

The Bihar Board BSEB Physics Question Paper 2024, along with the Answer Key, provides accurate solutions with detailed question marking, enabling students to predict their Physics Exam scores effectively. Understanding the mark distribution is crucial when analyzing the Bihar Board Class 12 Physics Answer Key 2024.

Bihar Board Class 12 Syllabus

The Bihar Board Physics Question Paper 2024 is segmented into two sections: Section A and Section B. Let's look into the pattern of each section.

Section A:

  • Consists of 70 objective-type questions, of which students need to answer only 35.
  • Each question carries one mark.
  • If more than 35 questions are answered, only the first 35 will be considered.
  • To answer these questions, students are required to darken the circle with a blue or black ball pen against the correct option on the OMR answer sheet.

Section B:

  • Comprises 20 short-answer-style questions, each worth 2 marks.
  • Students need to answer only 10 questions from this section.
  • There are 3 long-answer-type questions, each worth 5 points.
  • Students are required to answer any three questions from this section.

Bihar Board 12th english Answer key 2024

Bihar Board Physics Question Paper 2024: Exam Pattern

Take a look at the below table to view an highlights of the Bihar Board 12th Physics Answer Key 2024 :
Examination Name Bihar Board 12th Physics Answer Key 2024
Exam Conducting Body Bihar School Examination Board
Mode of Exam Pen Paper Mode
Unofficial Answer Key Release Date 3rd February 2024
Official Answer Key Release Date March 2024
Class 12 Physics Total Marks 100 Marks
Practical Marks 30 Marks
Theory Marks 70 Marks
Number of Sections 2 Sections
Section A Objective Type Questions
Section B Subjective Type Questions
Negative Marking No
Marking Scheme - MCQs: 35 Marks (1 Mark x 35)
- Short Type Questions: 2 Marks x 5
- Short Type Questions: 5 Marks x 3

Bihar Board Class 12th Physics Question Paper 2024

Check out the BSEB Physics Question Paper 2024 for Bihar Board Set A provided below.

Bihar Board 12th Physics Question Paper 2024 with Answer Key

Q. If in a logic gate output (Y) is obtained by the product of its both inputs (A . B), then the gate is (A) AND (B) OR (C) NOR (D) NOT

Answer: (A) AND

Q. The width of the forbidden energy gap in the semiconductor approximately (A) 1 eV (B) 10 eV (C) 100 eV (D) 0-01 eV

Answer: (D) 0-01 eV

Q, The equivalent number of decimal number 27 into binary number system will be (A) (10011)2 (B) (10111)2 (C) (11001)2, (D) (11011)2

Answer: D

Q. In full wave rectifier, if input frequency is 50 Hz, then output frequency will be (A) 25 Hz (B) 50 Hz (C) 100 Hz (D) 200 Hz

Answer: (C) 100 Hz

Q. The device which works of both modulation and demodulation is called (A) Laser (B) Radar (C) Modem (D) Fax

Answer: (C) Modem

Q. Distance of communication satellite from the surface of the earth is (A) 36000 km (B) 36000 mile (C) 3600 km (D) 36000 metre

Answer: (A) 36000 km

Q. Attenuation is measured in (A) ohm (B) decibel (C) mho (D) siemen

Answer: (B) decibel

Q. A magnet is situated near a closed conductor. Current can b produced in the conductor, if (A) only magnet is in motion (B) only conductor is in motion (C) both magnet and conductor are in motion (D) there is relative motion between magnet and conductor

Answer: (D) there is relative motion between magnet and conductor

Q. The value of current obtained in a moving coil galvanometer proportional to (A) deflection (0) (B) resistance (R) (C) magnetic field (B) (D) none of these

Answer: (A) deflection (0)

Q. A galvanometer is converted into ammeter by adding (A) low resistance in parallel (B) high resistance in series (C) low resistance in series (D) high resistance in parallel

Answer:(A) low resistance in parallel

Q. On dividing any magnet of magnetic moment (M) parallel to it length into n equal pieces, the moment of each piece will be (A) M/n (B) M/n² (c)M/2n (D) Mxn

Answer: (A) M/n

Q. Which of the following shows hysteresis? (A) Paramagnetic materials (B) Ferromagnetic materials (C) Diamagnetic materials (D) None of these

Answer: (B) Ferromagnetic materials

Q. The value of magnetic potential at a distance r from a pole strength m is

Answer: A

Q.

Answer: A

Q. An electron of charge e moves parallel to uniform lines of force in magnetic field B with velocity v. Force acting on electron is (A) evB (B) ev/B C) 0 D) Bv/e

Answer: (A) evB

Q. The nature of electron beams moving with uniform velocity in the same direction will be (A) converging (B) diverging (C) Parallel (D) none of these

Answer: (C) Parallel

Q. S.I. unit of self-induction is (A) coulomb (C) (B) volt (V) (C) ohm (2) (D) henry (H)

Answer: (D) henry (H)

Q. The working principle of dynamo is based on (A) heating effect of current (B) electromagnetic induction (C) induced magnetism D) induced current

Answer: (B) electromagnetic induction

Image formed in compound microscope is (A) real and erect (B) real and inverted (C) virtual and inverted (D) virtual and erect

Answer: (A) real and erect

Q. On oscillating any metallic sphere in the magnetic field, its oscillatory motion is (A) Accelerated (B) Damping (C) Uniform (D) None of these

Answer: (C) Uniform

Q. Convex lens is used in (A) short-sightedness (B) long-sightedness (C) presbyopia (D) astigmatism

Answer: (B) long-sightedness

Q. The colour of sky is blue due to (A) interference (B) scattering (C) diffraction (D) polarisation

Answer: (B) scattering

The fringe width in interference of light due to two coherent sources is (A) proportional to wavelength (B) inversely proportional to wavelength (c) Proportional to the square of the wavelength (D) Inversely proportional to the square of wavelength

Answer: (A) proportional to wavelength

Two sources of monochromatic light is coherent, when their (A) intensities are equal (B) amplitudes are equal (C) phases are equal (D) none of these

Answer: (B) amplitudes are equal

Q. Which of the following is blocked by a capacitor? (A) AC (C) Both AC and DC (B) DC (D) Neither AC nor DC

Answer: (B) DC

Q. Two bulbs of 40 W and 60 W are connected to 220 V source. T ratio of their resistances will be (A) 4:3 (B) 3:4 (C) 2:3 (D)3:2 Q. The resistance of any wire is 500 Ω. Its electrical conductivity will be (A) 0.002 ohm-1 (B) 0.02 ohm -1 (D) 500 ohm-1 (C) 50 ohm-1

Answer:(A) 0.002 ohm-1

Q. Two equal resistors are first connected in series and then in parallel. The ratio of maximum and minimum resistances will be (A) 1 – n (B) n (C) 2 n (D) n²

Answer: (D) n²

Q.

Answer; A

Answer: (B)

Q. increase the sensitivity of a potentiometer (A) the cross-section area of its wire will have to be increased (B) current in its wire will have to be decreased (C) current in its wire will have to be increased (D) length of its wire will have to be increased Q. Kirchhoff’s second law of electricity is related to (A) conservation of mass (B) conservation of charge (C) conservation of energy (D) conservation of momentum Q. Which one of the following is not a unit of magnetic field ? (A) tesla (B) weber / metre2 (C) newton/ampere-metre (D) newton/ ampere 2 Q. Unit of linear charge density (A) coulomb/metre (B) coulomb x metre (C) metre/coulomb (D) none of these Q. Two equal and opposite charges of 5 coulomb are kept mutually at a distance of 5-0 cm. The electric dipole moment of the system is

Answer: 25X 10-2 C/m

Q. If magnetic field B is perpendicular to surface area vector then the magnetic flux on ds area will be

Answer;  0

Q. Unit of reactance is

Answer: Henry

Q. Mean value of alternating current in a full cycle is (A) I (B) I/2 (D) zero (C) 2I

Answer: (D) zero

Q. If the phase difference between alternating current and e.m.f. is, ∅ then the value of power factor is

Answer: Cos ∅

Q. In AC circuit, power is lost in only (A) resistance (B) inductance (C) capacitance (D) all of these Q. Large virtual image of object is formed by (A) concave mirror (C) plane mirror (B) convex mirror (D) concave lens

Bihar Board Physics Question Paper 2024 Class 12th

The Class 12 Physics exam paper concluded successfully on 3rd February at 12:45 PM in the first shift. Every science stream student in Class 12 had to appear for the BSEB Physics Class 12 exam. The Class 12 Physics question paper for 2024 had a total of 10 sets from A to J. These question paper sets contain similar questions, ensuring that each student is evaluated on the same parameters. The question paper PDF for the Bihar Board Class 12 exam 2024 will be uploaded shortly.

Steps to Raise an Objection against Bihar Board 12th Physics Answer Key 2024

After downloading the BSEB 2024 Physics answer key, students must carefully examine all the details. The board is expected to open the objection window in March 2024 (tentative). Below are the steps to follow while raising objections:

Step 1: Visit the official website.

Step 2: Navigate to the home page and select the Physics subject, followed by the set number of the Bihar Board Class 12 Answer Key 2024.

Step 3: Choose the question number and specify the issue type.

Step 4: Select the correct answers and provide an explanation for the objection.

Step 5: Click the save button, and the objection will be submitted.

Check below for a sample image of the BSEB Class 12th Physics answer key objection window.

Details Mentioned on the BSEB 12th Physics Answer Key 2024

The Bihar Board 12th Physics Answer Key 2024 includes various details, providing comprehensive information for students. The following details are mentioned below for students' reference:
  • Subject name
  • Serial number
  • Set number
  • Subject code
  • Faculty (Science, Arts, Commerce)
  • Right Answer (A/B/C/D)
  • Question number
These details are crucial for students to cross-reference and validate their responses against the correct answers provided in the answer key.
Links Related to Other Boards
AP Board Date Sheet 2024 ICSE Date Sheet 2024
UP Board Exam Date 2024 MP Board 12th Time Table 2024
bihar board exam date 2024 CG Board Time Table 2024
ICSE Class 10th Date Sheet MP Board 10th Time Table 2024

Bihar Board 12th Physics Answer Key 2024 FAQs

When will the Bihar Board 12th Physics Answer Key 2024 be released?

The release date for the official answer key is announced by the Bihar Board. Unofficial answer keys may be available shortly after the exam.

Where can I find the Bihar Board 12th Physics Answer Key 2024?

The official answer key is usually released on the official Bihar Board website. Unofficial answer keys may be found on educational portals or forums.

How can I challenge an answer in the Bihar Board 12th Physics Answer Key?

The process for challenging answers may vary. Generally, you would need to follow the guidelines provided by the Bihar Board and submit your concerns within a specified timeframe.

Are unofficial answer keys reliable?

Unofficial answer keys are provided by third parties and may not be as accurate as the official key. They can serve as a reference but should not be considered conclusive.

What is the passing marks for BSEB Physics?

The passing marks for the BSEB 12th Physics exam is 30. This means that a student must score at least 30 marks in order to pass the exam. The exam will be conducted for a total of 3 hours and 15 minutes.
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