वैज्ञानिक अवलोकन में समय दर्ज करना कब विशेष रूप से आवश्यक है?
When is recording time especially necessary in a scientific observation?
Explanation opens after your attempt
Correct Answer
A. जब परिवर्तन की दर का अध्ययन होWhen the rate of change is being studied
Concept
Time and measurement are both needed to determine a rate of change. Identify time in rate-based questions.
Why this answer is correct
The correct answer is A. जब परिवर्तन की दर का अध्ययन हो / When the rate of change is being studied. Time and measurement are both needed to determine a rate of change. Identify time in rate-based questions.
Exam Tip
परिवर्तन की दर जानने के लिए समय और मापन दोनों आवश्यक होते हैं। परीक्षा में दर संबंधी प्रश्नों में समय पहचानें।
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