एक प्रयोग में तापमान बढ़ाने के साथ पानी की मात्रा भी बढ़ा दी गई। परिणाम की व्याख्या कठिन क्यों हो गई?
In an experiment the amount of water was increased along with temperature. Why did the result become difficult to interpret?
Explanation opens after your attempt
A. दो स्वतंत्र चर एक साथ बदल गएTwo independent variables changed together
Concept
Changing two factors together makes it unclear which factor caused the effect. In exams recognise this as confounding.
Why this answer is correct
The correct answer is A. दो स्वतंत्र चर एक साथ बदल गए / Two independent variables changed together. Changing two factors together makes it unclear which factor caused the effect. In exams recognise this as confounding.
Exam Tip
एक साथ दो कारक बदलने से यह तय नहीं होता कि प्रभाव किस कारण हुआ। परीक्षा में इसे भ्रमकारी चर की समस्या समझें।
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