प्रवाह चर को मापने के लिए क्या बताना जरूरी होता है?
What is necessary to state for measuring a flow variable?
Explanation opens after your attempt
A. समय अवधिTime period
Concept
A flow is not clear without a time period. Therefore stating the period is necessary.
Why this answer is correct
The correct answer is A. समय अवधि / Time period. A flow is not clear without a time period. Therefore stating the period is necessary.
Exam Tip
प्रवाह बिना समय अवधि के स्पष्ट नहीं होता। इसलिए अवधि बताना जरूरी है।
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