प्रकाश के प्रभाव की निष्पक्ष जांच में कौन सा कारक समान रखना चाहिए?
Which factor should be kept the same in a fair investigation of the effect of light?
Explanation opens after your attempt
C. पानी की मात्राAmount of water
Concept
Keeping the amount of water the same isolates the effect of light. A factor kept constant is a controlled variable.
Why this answer is correct
The correct answer is C. पानी की मात्रा / Amount of water. Keeping the amount of water the same isolates the effect of light. A factor kept constant is a controlled variable.
Exam Tip
पानी की मात्रा समान रखने से केवल प्रकाश का प्रभाव स्पष्ट होगा। समान रखा गया कारक नियंत्रित चर होता है।
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