CBSE Class 12 Physics Answer Key 2024: Exams Sets 1,2,3 PDF Solutions

# CBSE Class 12 Physics Answer Key 2024: Exams Sets 1,2,3 PDF Solutions

The CBSE class 12 Physics answer key 2024 is designed by subject experts to assist students in self-assessing their answer sheets. It helps identify areas of strength and weakness, enabling students to enhance their performance.

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The CBSE class 12 Physics exam is scheduled for 4th March 2024, from 10:30 am to 1:30 pm, carrying 70 marks. After the exam, students can refer to the answer key to evaluate their performance. The question paper will consist of 35 questions across 5 sections.

Also Check for All Subjects: CBSE Class 12 Syllabus 2024

## Overview: CBSE Class 12 Physics Exam Answer Key 2024

The CBSE will release the answer key for the Class 12 Physics 2024 exam after its completion, which will be conducted in pen and paper mode. The board will also provide guidelines on how to raise objections to the answer key. Furthermore, an unofficial answer key for CBSE Class 12 Physics 2024 will be available on this page for students to assess their performance. Direct links to the unofficial answer key will be provided below.

## CBSE Class 12 Physics Answer Key 2024

Section A

1. A battery supplies 0.9 A current through a 2 Ω resistor and 0.3 A current through a 7 Ω resistor when connected one by one. The internal resistance

of the battery is:

A. 2Ω

B. 1.2Ω

C. 1Ω

D. 0.5Ω

2. A particle of mass m and charge q describes a circular path of radius R in a magnetic field. If its mass and charge were 2 m and q/2 respectively, the radius of its path would be:

A. R/4

B. R/2

C. 2R

D. 4R

3. Which of the following pairs is that of paramagnetic materials?

(A) Copper and Aluminium

(B) Sodium and Calcium

(D) Nickel and Cobalt

4. A galvanometer of resistance 50 Ω is converted into a voltmeter of range (0 – 2V) using a resistor of 1.0 kΩ. If it is to be converted into a voltmeter of range (0 – 10 V), the resistance required will be

(A) 4.8 kΩ

(B) 5.0 kΩ

(C) 5.2 kΩ

(D) 5.4 kΩ

5. Two coils are placed near each other. When the current in one coil is changed at the rate of 5 A/s, an emf of 2 mV is induced in the other. The mutual inductance of the two coils is

A. 0.4 mH

B. 2.5 mH

C. 10 mH

D. 2.5 H

6. The electromagnetic waves used to purify water are

A. Infrared rays

B. Ultraviolet rays

C. X-rays

D. Gamma rays

7. The focal lengths of the objective and the eyepiece of a compound microscope are 1 cm and 2 cm respectively. If the tube length of the microscope is 10 em, the magnification obtained by the microscope for most suitable viewing by relaxed eye is :

(A) 250

(B) 200

(C) 150

(D) 125

8. The variation of the stopping potential (V0) with the frequency (v) of the incident radiation for four metals A, B, C and D is shown in the figure. For the same frequency of incident radiation producing photo-electrons in all metals, the kinetic energy of photo-electrons will be maximum for metal

(A) A

(B) B

(C) C

(D) D

9. The energy of an electron in the ground state of hydrogen atom is -13.6 eV. The kinetic and potential energy of the electron in the first excited state will be

(A) -13.6 eV, 27.2 eV

(B) -6.8 eV, 13,6 eV

(C) -3.4 eV, -6.8 eV

(D) 6.8 eV, -3.4 eV

10. A Young’s double-slit experimental set up is kept in a medium of refractive index (4/3). Which maximum in this case will coincide with the 6th maximum obtained if the medium is replaced by air ?

(A) 4th

(B) 6th

(C) 8th

(D) 10th

### CBSE Class 12 Physics Answer Key 2024: Important Dates

Students can review the important dates for upcoming events. It’s crucial to achieve a minimum of 33 percent in the Physics paper. Those unable to meet this requirement can take the CBSE Class 12 supplementary exams.

 Particulars Details CBSE Class 12th Physics exam date 4 Mar 2024 CBSE Class 12th Physics exam timing 10:30 am to 1:30 pm CBSE Class 12th Physics answer key release date (unofficial) 4 Mar 2024 CBSE Class 12th Physics answer key release date (official) April 2024 CBSE Class 12th Physics objection date April 2024 CBSE Class 12th Physics result date May 2024 CBSE Class 12th Physics supplementary exam date July 2024

### Steps to Calculate Scores using CBSE Class 12 Physics 2024 Answer Key

Students should calculate their scores accurately using the CBSE Class 12 Physics 2024 answer key. It’s important to note that there is no negative marking. Follow these steps:

2. Count one mark for each correct response.
3. Assign 0 for incorrect or unattempted answers, as there is no negative marking.
4. Calculate the total score to determine the final result.

Read more: CBSE Class 12 Physics Paper Analysis 2024

### CBSE Class 12 Physics Answer Key 2024: Pattern

To prepare for the upcoming board exams, students should check the table below, which outlines the marking scheme and question types for the 2024 Physics exam. The CBSE Class 12 Physics paper was conducted in pen-and-paper mode and lasted for 3 hours.

 Sections Number of Questions Marks Type of Questions Difficulty Level Section A 18 1 x 18 Multiple Choice Questions Moderate Section B 7 2 x 7 Very Short Answer Questions Difficult Section C 5 3 x 5 Short Answer Questions Moderate and time-consuming Section D 3 5 x 3 Long Answer Questions Moderate Section E 2 4 x 2 Case-Based Questions Moderate Total 35 70 – –