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precise observation MCQ Questions for Class 9

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3 questions tagged with precise observation.

Question 1/3 Hard Science Exploration: Entering the World of Secondary Science Scientific questions and observations Class 9 Level 4

एक अवलोकन में लिखा गया कि वस्तु का द्रव्यमान लगभग दस ग्राम है। अधिक सटीकता के लिए क्या करना चाहिए?

An observation states that an object's mass is about ten grams. What should be done for greater precision?

Explanation opens after your attempt
Correct Answer

A. उपयुक्त तराजू से वास्तविक रीडिंग दर्ज करेंRecord the actual reading using a suitable balance

Step 1

Concept

A suitable balance provides a precise value instead of an estimate. Choose the correct instrument.

Step 2

Why this answer is correct

The correct answer is A. उपयुक्त तराजू से वास्तविक रीडिंग दर्ज करें / Record the actual reading using a suitable balance. A suitable balance provides a precise value instead of an estimate. Choose the correct instrument.

Step 3

Exam Tip

उपयुक्त तराजू से मापने पर अनुमान के बजाय सटीक मान मिलता है। परीक्षा में सही उपकरण चुनें।

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Question 2/3 Hard Science Exploration: Entering the World of Secondary Science Scientific questions and observations Class 9 Level 4

एक विद्यार्थी ने लिखा कि मोमबत्ती जल्दी बुझी। इस अवलोकन को अधिक सटीक बनाने के लिए क्या दर्ज करना चाहिए?

A student wrote that a candle went out quickly. What should be recorded to make the observation more precise?

Explanation opens after your attempt
Correct Answer

B. बुझने तक लगा समयTime taken to go out

Step 1

Concept

The word quickly is vague so time should be measured. Convert vague descriptions into quantitative observations.

Step 2

Why this answer is correct

The correct answer is B. बुझने तक लगा समय / Time taken to go out. The word quickly is vague so time should be measured. Convert vague descriptions into quantitative observations.

Step 3

Exam Tip

जल्दी शब्द अस्पष्ट है इसलिए समय मापना चाहिए। परीक्षा में अस्पष्ट वर्णन को मात्रात्मक बनाएँ।

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Question 3/3 Medium Science Exploration: Entering the World of Secondary Science Scientific questions and observations Class 9 Level 6

कौन सा कथन सटीक अवलोकन का उदाहरण है?

Which statement is an example of a precise observation?

Explanation opens after your attempt
Correct Answer

A. द्रव का तापमान \(42^\circ C\) हैThe liquid temperature is \(42^\circ C\)

Step 1

Concept

A temperature with a number and unit is a clear and precise observation. In exams choose measurements instead of vague adjectives.

Step 2

Why this answer is correct

The correct answer is A. द्रव का तापमान \(42^\circ C\) है / The liquid temperature is \(42^\circ C\). A temperature with a number and unit is a clear and precise observation. In exams choose measurements instead of vague adjectives.

Step 3

Exam Tip

संख्या और इकाई वाला तापमान स्पष्ट तथा सटीक अवलोकन है। परीक्षा में अस्पष्ट विशेषणों के बजाय माप चुनें।

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