नियंत्रित चर का मुख्य उद्देश्य क्या है?
What is the main purpose of a controlled variable?
Explanation opens after your attempt
B. प्रयोग को निष्पक्ष बनानाTo make the experiment fair
Concept
Controlled variables are kept the same so that only the effect of the independent variable is observed.
Why this answer is correct
The correct answer is B. प्रयोग को निष्पक्ष बनाना / To make the experiment fair. Controlled variables are kept the same so that only the effect of the independent variable is observed.
Exam Tip
नियंत्रित चर समान रखे जाते हैं ताकि केवल स्वतंत्र चर का प्रभाव देखा जाए।
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