Bihar Board Class 10 Science Solution in Hindi Medium 2022?

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(a) जल ll 

(b) काँच

(c) प्लास्टिक

(d) मिट्टी

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2. किसी बिंब का अवतल दर्पण द्वारा बना प्रतिबिंब आभासी. सीधा तथा बिंब से बड़ा पाया गया।वस्तु की स्थिति कहाँ होनी चाहिए?

(a) मुख्य फोकस तथा वक्रता केन्द्र के बीच

(b) वक्रता केन्द्र पर

(c) वक्रता केन्द्र से परे

(d) दर्पण के ध्रुव तथा मुख्य फोकस के बीच

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3. किसी बिंब का वास्तविक तथा समान साइज का प्रतिबिंब प्राप्त करने के लिए बिंब को उत्तल लेंस के सामने कहाँ रखा जाना चाहिए?

(a) लेंस के मुख्य फोकस पर

(b) फोकस दूरी की दोगुनी दूरी पर

(c) अनंत पर

(d) लेंस के प्रकाशिक केन्द्र तथा मुख्य फोकस के बीच

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4. किसी गोलीय दर्पण तथा किसी पतले गोलीय लेंस दोनों की फोकस दूरियाँ-15 cm है। दर्पण तथा लेंस संभवतः हैं :

(A) दोनों अवतल

(b) दोनों उत्तल

(c) दर्पण अवतल तथा लेंस उत्तल

(d) दर्पण उत्तल तथा लेंस अवतल

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5. प्रकाश के अपवर्तन के कितने नियम हैं:-

(a) 1

(b) 2

(c) 3

(d) 4

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6. प्रकाश के परावर्तन के कितने नियम है?

(a) 1

(b) 2

(c) 3

(d) 4

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7. सरल सूक्ष्मदर्शी में किसका उपयोग होता है?

(a) अवतल दर्पण

(c) अवतल लेंस

(b) उत्तल दर्पण

(d) उत्तल लें

[bg_collapse view=”button-blue” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”(d) उत्तल लेंस” ][/bg_collapse] https://youtu.be/zbfE5uKZ2h8

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✔️ How do I download model paper?

For this, you have to visit the official website of the CBSE board. On the home page, you have to select the option of sample paper. Your sample paper will open on your screen. Save it and also download it in PDF.

✔️ ls CBSE released Sample paper 2021?

Central Board of Secondary Education has released the Class 10, 12 sample paper for CBSE Board Exams 2021-22. The sample paper for both Class 10, 12 has been released for Term I. Candidates can download the sample papers through the official site of CBSE on cbseacademic.nic.in.

✔️ How can I download 2021 sample paper?

Visit the official site of CBSE Academic on cbseacademic.nic.in. Click on CBSE Board Exam 2021 sample papers available on the top bar of the page. A new page will open where candidates will have to click on Class 10 or Class 12. Download the subject wise sample paper available on the newly opened page.

✔️ What are model papers?

Gives you a fair idea of examination: Solving model question papers gives you an actual picture of what can you expect from the examination. Model Question Papers always prepares based on the same pattern of actual question paper. … That’s only possible through regular practicing of questions from model question paper.

✔️ Which is better arihant or Oswaal?

Both Arihant and Oswaal are good but comparing them, Oswaal has a better range of questions. They also provide you with the best answer along with the toppers answers. They also provide the previous years papers. It will also help you understand the style of questioning of the board.

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