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For which law is a closed system the best experimental method?किस नियम को लागू करने के लिए बंद तंत्र सबसे अच्छा प्रयोगात्मक तरीका है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: Law of conservation of massद्रव्यमान संरक्षण का नियम
In a closed system matter does not escape so mass comparison is correct. Exam tip: remember closed system.बंद तंत्र में पदार्थ बाहर नहीं जाता इसलिए द्रव्यमान तुलना सही होती है। परीक्षा में closed system याद रखें।
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