कौन सा प्रयोग निष्पक्ष है?
Which experiment is fair?
Explanation opens after your attempt
A. एक कारक बदलकर बाकी कारक समान रखनाChanging one factor and keeping the others the same
Concept
In a fair experiment only one main factor is changed. Other relevant factors are kept the same.
Why this answer is correct
The correct answer is A. एक कारक बदलकर बाकी कारक समान रखना / Changing one factor and keeping the others the same. In a fair experiment only one main factor is changed. Other relevant factors are kept the same.
Exam Tip
निष्पक्ष प्रयोग में केवल एक मुख्य कारक बदला जाता है। अन्य संबंधित कारक समान रखे जाते हैं।
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