CBSE Class 12 Physics Answer Key 2025 (Available): Set-wise Unofficial Key PDF, Exam Analysis

The CBSE Class 12 Physics exam was conducted on February 21, 2025, in the offline (pen & paper) mode for 3 hours. The physics paper for class 12 was divided into 5 sections: A, B, C, D, and E. Section A consisted of MCQ questions, Section B consisted of very short answer questions, Section C consisted of short answer questions, Section D consisted of case-based questions, and Section E consisted of long answer questions.

The marking scheme differs depending on the type of questions. The total marks for the CBSE Class 12 Exam 2025 Physics exam were 70. The candidates can check below the set-wise CBSE Class 12 Physics Answer Key 2025 along with the question paper and exam analysis.

CBSE Class 12 Physics Exam 2025 Difficulty Level: Student Reaction

We have updated here the students' reaction to the CBSE Class 12 Physics exam:

• The overall difficulty level of the exam was moderate.
• Some of the Assertion Reasoning MCQs were tricky. However, most of the other MCQs were direct and easy to understand.
• The short-answer questions were easy in Section B. They were not time-consuming.
• Some of the students found the case study-based questions a bit tricky.
• Section E was of a moderate to Tough difficulty level. The long answer questions were a bit time-consuming, according to students.

CBSE Class 12 Physics Exam Analysis 2025

The table overviews the complete CBSE Class 12 Physics Answer Key 2025 exam analysis:

CBSE Class 12 Physics Answer Key 2025 PDF

We have updated the unofficial answer key for the CBSE Class 12 Physics exam below. The candidates can download the CBSE Class 12 Physics answer key in PDF form by clicking on the link below:

Q.1 Which of the following rays coming from the sun plays an important role in maintaining the earth’s warmth?

Ans: Option A (Infrared rays)

Q.2

Ans: Option D

Q. 3

Ans: Option D

Q. 4 Two coherent light waves, each having amplitude “a”, superpose to produce an interference pattern on a screen. The intensity of light as seen on the screen varies between:

Ans: Option B (0 and 4A2)

Q.5 A current of (10/x)A is maintained in a circular loop of radius 14 cm. The value of the dipole moment associated with the loop is:

Ans: Option C (0.196 Am2)

Q. 6 A transformer is a device used for converting:

Ans: Option C (low AC voltage and large AC current to high AC voltage and small AC current)

Q. 7

Ans: Option D (4R/3)

Q. 8 Which of the following electromagnetic waves has photons of largest momentum?

Ans: Option A (X-rays)

Q. 9 to 12:

Q. 9 Ans: Option C (¼)

Q. 10 Ans: Option A (2 cm)

Q. 11 Ans: Option B

Q. 12 Ans: Option B (5 cm)

Q. 13 to 16: Assertion and Reasoning

Q. 13 Ans: Option A (Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of the Assertion (A)).

Q. 14 Ans: Option D Both (Assertion (A) and Reason (R) are false)

Q. 15 Ans: Option C (Assertion (A) is true, but Reason (R) is false)

Q. 16 Ans: Option A (Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of the Assertion (A))

Students can check below to download the unofficial answer keys for Physics.

CBSE Class 12 Physics Question Paper 2025 PDF

In the link provided below, we have updated the CBSE Class 12 Physics question paper. The candidates can download the question paper for CBSE Class 12 Physics in PDF form by clicking on the link below: