CBSE Class 10 Science 2019 Previous Year Board Question Paper (Abroad Set-2)
This is the CBSE Class 10 Science 2019 Main Exam Abroad Set-2 Previous Year Question Paper. The paper is divided into five sections: A, B, C, D, and E, with all questions being compulsory. Section A contains one-mark questions, Section B has two-mark questions, Section C features three-mark questions, Section D includes five-mark questions, and Section E consists of two-mark questions based on practical skills. Internal choices are provided in Sections B, C, D, and E. Solving this board question paper will help students understand the exam pattern, question types, and marking scheme, enabling them to practice effectively and improve their performance in the upcoming board examinations.
Quick info
| Board | CBSE |
|---|---|
| Class | 10 |
| Subject | Science |
| Session | 2019 |
| Language | English |
| Type | Previous Year Question Paper |
| Exam type | Board Exam |
Paper pattern
The question paper comprises five sections (A, B, C, D, E). Section A has 1-mark questions, Section B has 2-mark questions, Section C has 3-mark questions, Section D has 5-mark questions, and Section E has 2-mark practical skill-based questions. Internal choice is available in sections B, C, D, and E.
Topics covered
Paper topics
- Current
- Refraction of Light
- Concave Mirrors
- Magnetic Field Lines
- Solenoids
Important topics
- Current and its SI unit
- Laws of Refraction
- Characteristics of image formed by concave mirror
- Magnetic field lines around a current-carrying solenoid
PDF preview
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Question paper text
Class X (CBSE 2019) Science Abroad (Set-2)
General Instructions:
- The question paper comprises five sections, A, B, C, D and E. You are to attempt all the sections.
- All questions are compulsory.
- Internal choice is given in sections B, C, D and E.
- Question numbers 1 and 2 in Section A are one mark questions. They are to be answered in one word or in one sentence.
- Question numbers 3 to 5 in Section B are two-marks questions. These are to be answered in about 30 words each.
- Question numbers 6 to 15 in Section C are three-marks questions. These are to be answered in about 50 words each.
- Question numbers 16 to 21 in Section D are five-marks questions. These are to be answered in about 70 words each.
- Question numbers 22 to 27 in Section E are based on practical skills. Each question is a two marks question. These are to be answered in brief.
Question 1
SOLUTION:
Define current. Give its S.I. unit.
The rate of flow of charge through a conductor is known as current. If a net charge Q, flows across any cross-section of a conductor in time 't', then the current I, through the cross-section is, <math>I = \frac{Q}{t}</math>. Its SI unit is Ampere (A).
Question 2
Name the component of sunlight which facilitates drying of wheat after harvesting.
SOLUTION:
Infrared component of sunlight facilitates the drying of wheat after harvesting.
Question 3
State laws of refraction of light.
OR
List four characteristics of the image formed by a concave mirror of focal length 40 cm when the object is placed in front of it at a distance of 20 cm from its pole.
SOLUTION:
The laws of refraction are as follows:
- The incident ray, the refracted ray, and the normal to the interface of two media at the point of incidence, all lie on the same plane.
- The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant for the given color of light and for the given pair of media.
OR
Using Mirror formula, <math>\frac{1}{v} + \frac{1}{u} = \frac{1}{f}</math>
Here, <math>u = -20</math> cm
<math>f = -40 \text{ cm}</math>
<math display="block">\frac{1}{v} = \frac{1}{f} - \frac{1}{u}</math> <math>\frac{1}{v} = \frac{1}{(-40)} - \frac{1}{(-20)} = \frac{1}{20} - \frac{1}{40} = \frac{1}{40}</math> <math>\Rightarrow v = 40 \text{ cm}</math>
Magnification, <math>m=-\frac{v}{u}=-\frac{40}{(-20)}=2</math>
As the image distance v, is positive hence the image is formed behind the mirror at a distance of 40 cm from the pole and It's virtual. Also, the magnification is positive and greater than 1 hence image is erect and enlarged.
Question 4
Draw magnetic field lines in and around a current carrying straight solenoid.
SOLUTION:
Magnetic field lines in and around the current carrying straight solenoid are as follows:
Frequently asked questions
What is this document?
This is the CBSE Class 10 Science 2019 Main Exam Abroad Set-2 Previous Year Question Paper for board exam practice.
What is the structure of the Science 2019 paper?
The paper has five sections (A, B, C, D, E) with varying marks per question and internal choices in sections B, C, D, and E.
How does solving previous year papers help?
Solving previous year question papers helps students understand the exam pattern, question difficulty, and time management, leading to improved scores.
What are the marks distribution for each section?
Section A: 1 mark, Section B: 2 marks, Section C: 3 marks, Section D: 5 marks, Section E: 2 marks (practical skills).
Is there any choice available in the paper?
Yes, internal choice is provided in Sections B, C, D, and E of the question paper.
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