Class 10 Science 10. Light-Reflection and Refraction Unit Test Papers
Unit test papers play a crucial role in helping students evaluate their understanding of different subjects and chapters. These tests are designed to check conceptual clarity and improve problem-solving skills before the final examinations. By practicing unit test papers regularly, students can identify their weak areas and work on them effectively.
On this page, you will find a collection of unit test papers for various classes and subjects, including important questions, sample papers, and practice tests. These papers are prepared according to the latest exam patterns, making them highly useful for school exams as well as competitive preparation.
How unit test paper helps to gain score?
Regular practice with unit test papers not only boosts confidence but also improves time management and accuracy. Students can use these resources to revise key concepts, enhance their performance, and achieve better results in their exams.
Benefits of Practicing Unit Test Papers
Practicing unit test papers regularly helps students strengthen their understanding of important topics and improve their exam performance. It allows them to get familiar with the question pattern, marking scheme, and time management. By solving these papers, students can analyze their mistakes and work on improving accuracy and speed.
Class 10 Science 10. Light-Reflection and Refraction Unit Test Papers
Unit Test Class
Science-10
10. Light-Reflection and Refraction
Unit test - II
ATP Education
Unit Test Class – X Science
Chapter – 10
Timing:1 hour Set-2 M.M:20
One mark Questions.
Q1. Define real image.
वास्तविक प्रतिबिम्ब को परिभाषित कीजिये |
Q2. Which lens is used to get the enlarge image of an object?
वस्तु का बड़ा और अवर्धित प्रतिबिम्ब प्राप्त करने के लिए किस लेंस का उपयोग किया जाता है ?
Q3. Which spherical mirror is used in vehicles as headlights to get powerful parallel beams of light?
वाहनों में किस गोलीय दर्पण का उपयोग प्रकाश के शक्तिशाली समांतर पुंज प्राप्त करने के लिए किया जाता है ?
Q4. Establish the relation between the radius of curvature and focal length of any mirror.
किसी दर्पण के फोकस दुरी और इसके वक्रता त्रिज्या के बीच संबंध स्थापित कीजिये |
Q5. Define 1 dioptre of power of a lens.
किसी लेंस की एक डायोपटर क्षमता को परिभाषित कीजिये |
Two Marks Questions:
Q6. What is Snell’s law of refraction?
अपवर्तन का स्नेल नियम क्या है ?
Q7. Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 × 108 m s–1.
प्रकाश वायु से 1.50 अपवर्तनांक की काँच की प्लेट में प्रवेश करता है काँच में प्रकाश की चाल कितनी है ? निर्वात में प्रकाश की चाल 3 × 108 ms-1 है |
Three marks Questions:
Q8. An object 5 cm in length is held 25 cm away from a converging lens of focal length 10 cm. Draw the ray diagram and find the position, size and the nature of the image formed.
5 cm लंबा कोई बिंब 10 cm फोकस दुरी के किसी अभिसारी लेंस से 25 cm की दुरी पर रखा जाता है | प्रकाश किरण-आरेख खींचकर बनाने वाले प्रतिबिंब की स्थिति, साइज़ तथा प्रकृति ज्ञात कीजिए |
Q9. A 2.0 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 10 cm. The distance of the object from the lens is 15 cm. Find the nature, position and size of the image. Also find its magnification.
कोई 2.0 cm लंबा बिंब 10 cm फोकस दुरी के किसी उत्तल लेंस के मुख्य अक्ष के लंबवत रखा है | बिंब की लेंस से दुरी 15 cm है | प्रतिबिम्ब की प्रकृति, स्थिति तथा साइज़ ज्ञात कीजिए | इसका आवर्धन भी ज्ञात कीजिये |
Q10. Give regions: (2 + 1 + 1 + 1)
(i) Why do we prefer a convex mirror as a rear-view mirror in vehicles?
(ii) Why the power of concave lens is negative?
(iii) Why dentist uses concave mirror to get the image of teeth?
(iv) Why object is placed always left to the mirror?
कारण दीजिए |
(i) वाहनों में हम पार्श्व दृष्टि के लिए उत्तल दर्पण को प्राथमिकता क्यों देते हैं ?
(ii) अवतल लेंस की क्षमता ऋणात्मक क्यों होती है ?
(iii) दाँतों का प्रतिबिम्ब प्राप्त करने के लिए दन्त चिकित्सक अवतल दर्पण का उपयोग क्यों करता है ?
(iv) वस्तु के हमेशा दर्पण से वाएं क्यों रखा जाता है ?
Class 10 Science Chapters Unit Test Papers
Unit Test Papers
Class 10
How to Use Unit Test Papers Effectively
To get the best results, students should attempt unit test papers in a timed environment and treat them like real exams. After completing each test, it is important to review the answers carefully and understand the mistakes. Consistent practice and proper analysis will help students build confidence and achieve better results in their academic journey.
✨ You May Also Like This!
View Related Article
Learn Writing SkillsHere You will learn how to write a paragraphs, essays, letters, notice, reports, article and so many writing skills
Frequently Asked Questions (FAQs)
What are unit test papers?
Unit test papers are short tests designed to check a student’s understanding of specific chapters or topics before final exams.
Why are unit test papers important?
They help students practice important questions, improve performance, and prepare effectively for school exams.
Where can I download unit test papers?
You can download unit test papers from educational websites that provide class-wise and subject-wise practice papers.
Do unit test papers include answers?
Yes, many unit test papers come with answers or solutions to help students understand the correct approach.
Are unit test papers useful for board exam preparation?
Yes, they are very useful as they cover important concepts and frequently asked questions.