Chapter practice
1. प्रकाश के परावर्तन का नियम समझाइए। (Repeated Question)
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Answer: परावर्तन में आपतित किरण, परावर्तित किरण और अभिलम्ब एक ही तल में होते हैं और आपतन कोण = परावर्तन कोण होता है।
Exam: CBSE Class 10 Board Exam 2026
Cbse Class 10 Important
Cbse Class 10 Important is the job of this URL — practise this topic here, then follow a related set. This is not a mixed GK dump.
These questions follow the classroom chapter, not a government-job paper. Use them for revision before school tests and for strengthening the same NCERT ideas that later appear in NDA or SSC science.
Cbse Class 10 Important is grouped under CBSE / Board for CBSE and state board classes. Use the related links to continue the same cluster instead of leaving the topic after one page.
2. DNA की संरचना किसने बताई थी?
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Answer: वॉटसन और क्रिक (Watson & Crick)।
Exam: CBSE Board 2026 Expected
3. मानव नेत्र का फोकस लम्बाई (Focal Length) बदलने की क्षमता को क्या कहते हैं?
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Answer: समायोजन (Accommodation)।
Exam: CBSE Class 10 Science 2026
4. रासायनिक अभिक्रिया क्या है? उदाहरण सहित समझाइए।
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Answer: किसी पदार्थ का दूसरे पदार्थ में परिवर्तन रासायनिक अभिक्रिया कहलाता है। उदाहरण: Iron + Oxygen → Rust.
Exam: CBSE Class 10 Board 2026 (Repeated)
5. विद्युत धारा का SI मात्रक क्या है?
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Answer: एम्पीयर (Ampere)
Exam: Most Asked MCQ CBSE 2026
6. ओजोन परत को नुकसान किससे होता है?
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Answer: CFC (Chlorofluorocarbon) गैस से।
Exam: CBSE Class 10 Environment Chapter
Board practice that also helps later exams
NCERT answers are the source for many competitive science and geography questions. Finishing this set well is useful for both the school exam and later SSC/NDA papers.
Continue in this cluster
You are on Cbse Class 10 Important. The next useful click is a related topic, not a random homepage visit.
Frequently asked questions
Are these questions in the board pattern?
Yes. This is chapter-focused CBSE / NCERT practice with answers. Use it for school tests and board revision. Competitive exams later ask many of the same facts as short MCQs.
Should I only read answers or write them first?
Cover the answer, write your own line, then open the solution. Definitions stick when you use NCERT words. For numericals, list u, v, a, t, s before picking a formula.
Is this enough for the full board exam?
This sheet is high-priority revision, not the full syllabus. After you miss a question, open that NCERT example and also attempt a related chapter or mock paper.
Today's 3-step path
Follow this loop every day: mixed test, current affairs, then today's subject. A new set arrives tomorrow.
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After this page, use these three links — do not open a random page.
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More sets from the same cluster — stay on this topic.
24/7 Test Series
Timed papers with a scorecard — start any time, then return to a related quiz above.