Class 9 Science - Exploration: Entering the World of Secondary Science - Hypothesis and experimentation Hard Quiz

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किसी परिकल्पना को वैज्ञानिक बनाने के लिए कौन सी शर्त आवश्यक है?

Which condition is necessary for a hypothesis to be scientific?

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Correct Answer

B. वह परीक्षण योग्य पूर्वानुमान देIt should make testable predictions

Step 1

Concept

A scientific hypothesis should produce a prediction that can be tested. Identify testability in exams.

Step 2

Why this answer is correct

The correct answer is B. वह परीक्षण योग्य पूर्वानुमान दे / It should make testable predictions. A scientific hypothesis should produce a prediction that can be tested. Identify testability in exams.

Step 3

Exam Tip

वैज्ञानिक परिकल्पना से ऐसा पूर्वानुमान निकलना चाहिए जिसे जाँचा जा सके। परीक्षा में परीक्षणीयता पहचानें।

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एक विद्यार्थी प्रयोग के बाद अपनी परिकल्पना बदलता है और दावा करता है कि यही मूल परिकल्पना थी। इसमें मुख्य समस्या क्या है?

A student changes the hypothesis after the experiment and claims it was the original hypothesis. What is the main problem?

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Correct Answer

B. पारदर्शिता और वैज्ञानिक ईमानदारी की कमी हैThere is a lack of transparency and scientific honesty

Step 1

Concept

Presenting a post-experiment change as predetermined violates transparency. Link accurate records with scientific ethics.

Step 2

Why this answer is correct

The correct answer is B. पारदर्शिता और वैज्ञानिक ईमानदारी की कमी है / There is a lack of transparency and scientific honesty. Presenting a post-experiment change as predetermined violates transparency. Link accurate records with scientific ethics.

Step 3

Exam Tip

प्रयोग के बाद बदले विचार को पूर्व निर्धारित बताना पारदर्शिता के विरुद्ध है। परीक्षा में सही अभिलेखन को वैज्ञानिक नैतिकता से जोड़ें।

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एक वैज्ञानिक ने निष्कर्ष में लिखा कि परिणाम परिकल्पना सिद्ध करते हैं। अधिक सावधान वैज्ञानिक भाषा क्या होगी?

A scientist wrote that the results prove the hypothesis. What would be more cautious scientific language?

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Correct Answer

A. परिणाम परिकल्पना का समर्थन करते हैंThe results support the hypothesis

Step 1

Concept

A study generally supports a hypothesis rather than proving it as final truth. Identify cautious scientific wording.

Step 2

Why this answer is correct

The correct answer is A. परिणाम परिकल्पना का समर्थन करते हैं / The results support the hypothesis. A study generally supports a hypothesis rather than proving it as final truth. Identify cautious scientific wording.

Step 3

Exam Tip

एक अध्ययन सामान्यतः परिकल्पना को समर्थन देता है लेकिन अंतिम सत्य सिद्ध नहीं करता। परीक्षा में वैज्ञानिक निष्कर्ष की सावधान भाषा पहचानें।

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