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competing explanations MCQ Questions for Class 9

competing explanations se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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2 questions tagged with competing explanations.

Question 1/2 Hard Science Exploration: Entering the World of Secondary Science Nature and meaning of science Class 9 Level 1

किसी प्राकृतिक घटना की दो व्याख्याएँ समान आँकड़ों को समझाती हैं। बेहतर वैज्ञानिक परीक्षण कैसा होगा?

Two explanations account for the same data about a natural phenomenon. What would be a better scientific test?

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Correct Answer

A. ऐसा प्रयोग जो दोनों के अलग पूर्वानुमानों की तुलना करेAn experiment that compares their different predictions

Step 1

Concept

Competing explanations should be separated by testing their different predictions. Identify a decisive test.

Step 2

Why this answer is correct

The correct answer is A. ऐसा प्रयोग जो दोनों के अलग पूर्वानुमानों की तुलना करे / An experiment that compares their different predictions. Competing explanations should be separated by testing their different predictions. Identify a decisive test.

Step 3

Exam Tip

प्रतिस्पर्धी व्याख्याओं को अलग करने के लिए उनके भिन्न पूर्वानुमानों की जाँच करनी चाहिए। परीक्षा में निर्णायक परीक्षण पहचानें।

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Question 2/2 Hard Science Exploration: Entering the World of Secondary Science Nature and meaning of science Class 9 Level 3

यदि एक ही आँकड़ों की दो अलग वैज्ञानिक व्याख्याएँ संभव हों तो सबसे उचित अगला कदम क्या है?

If two different scientific explanations fit the same data what is the most appropriate next step?

Explanation opens after your attempt
Correct Answer

C. ऐसा परीक्षण बनाना जो दोनों के अलग पूर्वानुमानों को जाँच सकेDesign a test that examines their different predictions

Step 1

Concept

Competing explanations should be distinguished by testing their different predictions. Remember the idea of a decisive test.

Step 2

Why this answer is correct

The correct answer is C. ऐसा परीक्षण बनाना जो दोनों के अलग पूर्वानुमानों को जाँच सके / Design a test that examines their different predictions. Competing explanations should be distinguished by testing their different predictions. Remember the idea of a decisive test.

Step 3

Exam Tip

प्रतिस्पर्धी व्याख्याओं को अलग करने के लिए भिन्न पूर्वानुमानों की जाँच करनी चाहिए। परीक्षा में निर्णायक परीक्षण का विचार याद रखें।

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