एक छात्र अलग मात्रा में रेत डालकर पानी छानने का समय मापता है। रेत की मात्रा क्या है?
A student uses different amounts of sand and measures the time taken to filter water. What is the amount of sand?
Explanation opens after your attempt
D. स्वतंत्र चरIndependent variable
Concept
The amount of sand is deliberately changed so it is the independent variable. In exams identify the changed amount of material.
Why this answer is correct
The correct answer is D. स्वतंत्र चर / Independent variable. The amount of sand is deliberately changed so it is the independent variable. In exams identify the changed amount of material.
Exam Tip
रेत की मात्रा जानबूझकर बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में बदले गए पदार्थ की मात्रा पहचानें।
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