CBSE Class 12 Mathematics Board Question Paper 2015 (Set-3, Delhi)
This is the CBSE Class 12 Mathematics Board Question Paper from the 2015 Main Exams, Set-3 for Delhi region. The paper contains a total of 26 questions and is designed to be completed in 3 hours, with a maximum score of 100 marks. It is divided into three sections: Section-A comprises 6 very short answer type questions, each carrying 1 mark. Section-B includes 13 long answer I type questions, each worth 4 marks. Section-C consists of 7 long answer II type questions, each carrying 6 marks. Solving this previous year's question paper is crucial for students to understand the exam pattern, marking scheme, and difficulty level, thereby enhancing their preparation and performance in the upcoming board examinations.
Quick info
| Board | CBSE |
|---|---|
| Class | 12 |
| Subject | Mathematics |
| Session | 2015 |
| Language | Hindi |
| Type | Previous Year Question Paper |
| Exam type | Board Exam |
Paper pattern
The paper has 26 questions divided into three sections: Section-A (6 questions, 1 mark each), Section-B (13 questions, 4 marks each), and Section-C (7 questions, 6 marks each). The total marks are 100 and the time allowed is 3 hours.
Topics covered
Paper topics
- Differential Equations
- Vector Algebra
Important topics
- Differential Equations
- Vector Algebra
PDF preview
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Question paper text
SET - 3
Series: SSO/1
Code No.
रोल नं.
कोड नं.
Roll No.
65/1/3/D
परीक्षार्थी कोड को उत्तर-पुस्तिका के मुख-पृष्ट
पर अवश्य लिखें ।
Candidates must write the Code on
the title page of the answer-book.
कृपया जाँच कर लें कि इस प्रश्न-पत्र में मुद्रित पृष्ट 8 हैं ।
प्रश्न-पत्र में दाहिने हाथ की ओर दिए गए कोड नम्बर को छात्र उत्तर-पुस्तिका के मुख-पृष्ट पर लिखें ।
कृपया जाँच कर लें कि इस प्रश्न-पत्र में 26 प्रश्न हैं।
कृपया प्रश्न का उत्तर लिखना शुरू करने से पहले, प्रश्न का क्रमांक अवश्य लिखें।
इस प्रश्न-पत्र को पढ़ने के लिए 15 मिनट का समय दिया गया है । प्रश्न-पत्र का वितरण पूर्वाह्न में 10.15 बजे किया जायेगा । 10.15 बजे से 10.30 बजे तक छात्र केवल प्रश्न-पत्र को पढ़ेंगे और इस अवधि के दौरान वे उत्तर-पुस्तिका पर कोई उत्तर नहीं लिखेंगे ।
Please check that this question paper contains 8 printed pages.
Code number given on the right hand side of the question paper should be written on the title page of the answer-book by the candidate.
Please check that this question paper contains 26 questions.
Please write down the Serial Number of the question before attempting it.
15 minutes time has been allotted to read this question paper. The question paper will be distributed at 10.15 a.m. From 10.15 a.m. to 10.30 a.m., the students will read the question paper only and will not write any answer on the answer-book during this period.
गणित
MATHEMATICS
निर्धारित समय : 3 घण्टे]
[अधिकतम अंक : 100
Time allowed: 3 hours ]
[ Maximum Marks : 100
सामान्य निर्देश :
(i) सभी प्रश्नों के उत्तर लिखने हैं।
- कृपया जाँच लें कि इस प्रश्न-पत्र में 26 प्रश्न है।
- प्रत्येक प्रश्न के लिए निर्धारित अंक उसके सामने दिए गए हैं ।
- खण्ड-क के प्रश्न सं. 1–6 लघुत्तर प्रश्न हैं और प्रत्येक के लिए 1 अंक निर्धारित है ।
- खण्ड-ख के प्रश्न सं. 7–19 दीर्घ उत्तर प्रकार के प्रश्न है और प्रत्येक के लिए 🗗 अंक निर्धारित हैं ।
- खण्ड-म के प्रश्न सं. 20–26 दीर्घ उत्तर II प्रकार के प्रश्न हैं और प्रत्येक के लिए 6 अंक निर्धारित हैं ।
- उत्तर लिखना प्रारंभ करने से पहले कृपया प्रश्न का क्रमांक अवश्य लिखें ।
65/1/3/D 1 [P.T.O.
General Instructions:
- All questions are compulsory.
- Please check that this Question Paper contains 26 Questions.
- Marks for each question are indicated against it.
- Questions 1 to 6 in Section-A are Very Short Answer Type Questions carrying one mark each.
- Questions 7 to 19 in Section-B are Long Answer I Type Questions carrying 4 marks each.
- Questions 20 to 26 in Section-C are Long Answer II Type Questions carrying 6 marks each
- Please write down the serial number of the Question before attempting it.
खण्ड – क
SECTION - A
प्रश्न संख्या 1 से 6 तक प्रत्येक प्रश्न 1 अंक का है ।
Question numbers 1 to 6 carry 1 mark each.
- वक्रों के कुल <math>v=\frac{\mathbf{A}}{\mathbf{r}}+\mathbf{B}</math> को निरूपित करने वाला अवकल समीकरण ज्ञात कीजिए, जहाँ <math>\mathbf{A}</math> तथा <math>\mathbf{B}</math> स्वेच्छ अचर हैं।
1 Find the differential equation representing the family of curves <math>v = \frac{A}{r} + B</math>, where A and B are arbitrary constants.
- अवकल समीकरण
<math display="block">\left(\frac{e^{-2\sqrt{x}}}{\sqrt{x}} - \frac{y}{\sqrt{x}}\right) \frac{dx}{dy} = 1</math>
का समाकलन गुणक ज्ञात कीजिए । 1 Find the integrating factor of the differential equation
<math display="block">\left(\frac{e^{-2\sqrt{x}}}{\sqrt{x}} - \frac{y}{\sqrt{x}}\right) \frac{dx}{dy} = 1.</math>
- यदि <math>\overrightarrow{a} = 7\hat{i} + \hat{j} - 4\hat{k}</math> तथा <math>\overrightarrow{b} = 2\hat{i} + 6\hat{j} + 3\hat{k}</math> है, तो सदिश <math>\overrightarrow{a}</math> का सदिश <math>\overrightarrow{b}</math> पर प्रक्षेप ज्ञात कीजिए । 1
If <math>\vec{a} = 7\hat{i} + \hat{j} - 4\hat{k}</math> and <math>\vec{b} = 2\hat{i} + 6\hat{j} + 3\hat{k}</math>, then find the projection of <math>\vec{a}</math> on <math>\vec{b}</math>. 65/1/3/D 2
Frequently asked questions
What is this document?
This is the official CBSE Class 12 Mathematics Previous Year Board Question Paper from the 2015 Main Exams (Set-3, Delhi).
What is the structure of the paper?
The paper has 26 questions divided into three sections: Section-A (Very Short Answer, 1 mark each), Section-B (Long Answer I, 4 marks each), and Section-C (Long Answer II, 6 marks each).
What is the total marks and time duration?
The paper is for a maximum of 100 marks and the allowed time is 3 hours.
How does solving previous year papers help?
Solving previous year question papers helps students understand the board pattern, marking scheme, and difficulty level, improving their exam preparation and confidence.
What is the code for this paper?
The code number for this specific paper is 65/1/3/D.
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