विभिन्न सतहों पर खिलौना कार की दूरी मापते समय सतह का प्रकार किस प्रकार का चर है?
While measuring the distance travelled by a toy car on different surfaces what type of variable is the surface type?
Explanation opens after your attempt
D. स्वतंत्र चरIndependent variable
Concept
The surface type is deliberately changed by the investigator so it is the independent variable. The manipulated factor is the independent variable.
Why this answer is correct
The correct answer is D. स्वतंत्र चर / Independent variable. The surface type is deliberately changed by the investigator so it is the independent variable. The manipulated factor is the independent variable.
Exam Tip
सतह का प्रकार प्रयोगकर्ता द्वारा बदला जाता है इसलिए यह स्वतंत्र चर है। जानबूझकर बदला गया कारक स्वतंत्र चर होता है।
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