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operational measurement MCQ Questions for Class 9

operational measurement 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 operational measurement.

Question 1/2 Expert Science Exploration: Entering the World of Secondary Science Scientific questions and observations Class 9 Level 5

एक जांच में पौधों की वृद्धि को केवल देखकर अच्छा या खराब लिखा गया। इस आंकड़े की मुख्य सीमा क्या है?

In an investigation plant growth was recorded only as good or poor by looking. What is the main limitation of this data?

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Correct Answer

A. यह अस्पष्ट और व्यक्तिपरक हैIt is vague and subjective

Step 1

Concept

Good and poor do not provide clear measurements and may vary by observer. Use values such as height or leaf number.

Step 2

Why this answer is correct

The correct answer is A. यह अस्पष्ट और व्यक्तिपरक है / It is vague and subjective. Good and poor do not provide clear measurements and may vary by observer. Use values such as height or leaf number.

Step 3

Exam Tip

अच्छा और खराब स्पष्ट मापन नहीं देते और व्यक्ति के अनुसार बदल सकते हैं। ऊंचाई या पत्तियों की संख्या जैसे मान लें।

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Question 2/2 Hard Science Exploration: Entering the World of Secondary Science Scientific questions and observations Class 9 Level 6

एक छात्र ने लिखा कि पौधा तेजी से बढ़ा। इस कथन को अधिक वैज्ञानिक बनाने का सर्वोत्तम तरीका क्या है?

A student wrote that a plant grew rapidly. What is the best way to make this statement more scientific?

Explanation opens after your attempt
Correct Answer

B. प्रारंभिक और अंतिम ऊँचाई तथा समय दर्ज करनाRecord initial and final height and the time interval

Step 1

Concept

Change in height and time make growth rate measurable. In exams replace vague words with numerical data.

Step 2

Why this answer is correct

The correct answer is B. प्रारंभिक और अंतिम ऊँचाई तथा समय दर्ज करना / Record initial and final height and the time interval. Change in height and time make growth rate measurable. In exams replace vague words with numerical data.

Step 3

Exam Tip

ऊँचाई में परिवर्तन और समय वृद्धि दर को माप योग्य बनाते हैं। परीक्षा में अस्पष्ट शब्दों को संख्यात्मक डेटा से बदलें।

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