ध्वनि की तीव्रता का पौधे की वृद्धि पर प्रभाव जांचते समय स्वतंत्र चर क्या है?
What is the independent variable while testing the effect of sound intensity on plant growth?
Explanation opens after your attempt
A. ध्वनि की तीव्रताSound intensity
Concept
Sound intensity is deliberately changed. Therefore it is the independent variable.
Why this answer is correct
The correct answer is A. ध्वनि की तीव्रता / Sound intensity. Sound intensity is deliberately changed. Therefore it is the independent variable.
Exam Tip
ध्वनि की तीव्रता जानबूझकर बदली जाती है। इसलिए यह स्वतंत्र चर है।
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