CBSE Class 12 Mathematics 2015 Previous Year Board Question Paper (Set-1)
This is the CBSE Class 12 Mathematics 2015 Main Exams Delhi-Set-1 Previous Year Question Paper. The paper is divided into three sections: Section-A, Section-B, and Section-C. Section-A contains 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 comprises 7 long answer II type questions, each carrying 6 marks. The total marks for the paper are 100, and the allowed time is 3 hours. Solving this board question paper will help students understand the exam pattern, question types, and marking scheme, thereby improving their preparation and performance in the 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).
Topics covered
Paper topics
- Vectors
- Coplanar Vectors
- Direction Cosines
- Matrices
Important topics
- Vector Projection
- Coplanarity of Vectors
- Matrix Elements
PDF preview
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Question paper text
SET – 1
Series: SSO/1
रोल नं.
Roll No.
कोड नं. Code No. 65/1/1/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 मृद्रित पृष्ठ 8 हैं ।
प्रश्न-पत्र में दाहिने हाथ की ओर दिए गए कोड नम्बर को छात्र उत्तर-पुस्तिका के मुख-पृष्ठ 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.
lacktrian 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 ।
1 65/1/1/D
[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.
- 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>.
- यदि सदिश <math>\vec{a} = \hat{i} + 3\hat{j} + \hat{k}</math>, <math>\vec{b} = 2\hat{i} - \hat{j} - \hat{k}</math> तथा <math>\vec{c} = \lambda\hat{j} + 3\hat{k}</math> समतलीय हैं, तो <math>\lambda</math> का मान ज्ञात कीजिए ।
1 Find <math>\lambda</math>, if the vectors <math>\overrightarrow{a} = \hat{i} + 3\hat{j} + \hat{k}</math>, <math>\overrightarrow{b} = 2\hat{i} - \hat{j} - \hat{k}</math> and <math>\overrightarrow{c} = \lambda \hat{j} + 3\hat{k}</math> are coplanar. 1
- यिंद एक रेखा x-अक्ष से 90°, y-अक्ष से 60° तथा z-अक्ष से न्यूनकोण <math>\theta</math> बनाती है, तो <math>\theta</math> ज्ञात कीजिए । If a line makes angles 90°, 60° and <math>\theta</math> with x, y and z-axis respectively, where <math>\theta</math> is acute, then find <math>\theta</math>.
- <math>3\times 3</math> कोटि के एक आव्यूह <math>A=(a_{ij})</math> जिसके अवयव <math>a_{ij}=\frac{|i-j|}{2}</math> द्वारा परिभाषित हैं, का अवयव a<sub>23</sub> लिखिए ।
1 Write the element <math>a_{23}</math> of a 3 <math>\times</math> 3 matrix <math>A = (a_{ij})</math> whose elements <math>a_{ij}</math> are given by <math>a_{ij} = \frac{|i-j|}{2}</math>.
65/1/1/D 2
Frequently asked questions
What is this document?
This is the CBSE Class 12 Mathematics 2015 Previous Year Board Question Paper (Delhi-Set-1) for exam practice.
What is the total marks and time duration for the paper?
The paper is for a maximum of 100 marks and the allowed time is 3 hours.
How many sections and questions are there in the paper?
The paper consists of 26 questions divided into three sections: Section-A, Section-B, and Section-C.
How can solving previous year papers help?
Solving previous year question papers helps students understand the board pattern, question difficulty, and marking scheme, leading to better exam preparation and improved scores.
What is the marking scheme for each section?
Section-A has 6 questions of 1 mark each, Section-B has 13 questions of 4 marks each, and Section-C has 7 questions of 6 marks each.
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