Concept-wise Practice

sound observation MCQ Questions for Class 9

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

Practice Questions

1 questions tagged with sound observation.

किसी ध्वनि का अवलोकन केवल तेज या धीमा लिखने के बजाय अधिक वैज्ञानिक कैसे बनेगा?

How can an observation of sound be made more scientific than simply writing loud or soft?

Explanation opens after your attempt
Correct Answer

A. ध्वनि स्तर मापक से मान दर्ज करकेBy recording a value with a sound level meter

Step 1

Concept

Measuring sound level with an instrument makes the observation quantitative and comparable. Choose suitable measurement methods.

Step 2

Why this answer is correct

The correct answer is A. ध्वनि स्तर मापक से मान दर्ज करके / By recording a value with a sound level meter. Measuring sound level with an instrument makes the observation quantitative and comparable. Choose suitable measurement methods.

Step 3

Exam Tip

उपकरण से ध्वनि स्तर मापने पर अवलोकन मात्रात्मक और तुलनीय बनता है। परीक्षा में उपयुक्त मापन विधि चुनें।

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