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standard instrument MCQ Questions for Class 9

standard instrument 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 standard instrument.

Question 1/2 Hard Science Exploration: Entering the World of Secondary Science Scientific questions and observations Class 9 Level 4

किसी तालाब के जल की पारदर्शिता का निष्पक्ष अवलोकन करने के लिए कौन सी विधि सर्वोत्तम है?

Which method is best for objectively observing the transparency of pond water?

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Correct Answer

D. मानक दृश्यता उपकरण से समान गहराई पर मापन करनाMeasure at the same depth using a standard visibility instrument

Step 1

Concept

A standard instrument and equal depth provide comparable measurements of transparency. Choose controlled methods for objective observation.

Step 2

Why this answer is correct

The correct answer is D. मानक दृश्यता उपकरण से समान गहराई पर मापन करना / Measure at the same depth using a standard visibility instrument. A standard instrument and equal depth provide comparable measurements of transparency. Choose controlled methods for objective observation.

Step 3

Exam Tip

मानक उपकरण और समान गहराई पारदर्शिता की तुलनीय माप देते हैं। परीक्षा में वस्तुनिष्ठ अवलोकन के लिए नियंत्रित विधि चुनें।

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

किस स्थिति में अवलोकन अधिक विश्वसनीय होगा?

In which situation will an observation be more reliable?

Explanation opens after your attempt
Correct Answer

D. मानक उपकरण से कई बार मापने परWhen measuring several times with a standard instrument

Step 1

Concept

A standard instrument and repetition increase measurement reliability. In exams look for both proper tools and repetition.

Step 2

Why this answer is correct

The correct answer is D. मानक उपकरण से कई बार मापने पर / When measuring several times with a standard instrument. A standard instrument and repetition increase measurement reliability. In exams look for both proper tools and repetition.

Step 3

Exam Tip

मानक उपकरण और दोहराव मापन की विश्वसनीयता बढ़ाते हैं। परीक्षा में उपकरण और पुनरावृत्ति दोनों देखें।

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