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Question
একটি সেকেন্ডে দোলকের কার্যকরী দৈর্ঘ্য 1% বৃদ্ধি করা হলে , দোলকটির দৈনিক কত সেকেন্ড ধীরে চলবে ?
430s
440s
450s
460s
ANSWER : 1
Descrption
<p><a href="https://www.sattacademy.com/admission/single-question?ques_id=84141">1% বৃদ্ধি করা হলে ,</a> L<sub>2</sub>=L<sub>1</sub>+0.0T</p><p>আমরা জানি দোলনকাল কার্যকরী দৈর্ঘ্য বর্গমূলের সমানুপাতিক</p><p>অতএব<math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><msub><mi>T</mi><mn>1</mn></msub><msub><mi>T</mi><mn>2</mn></msub></mfrac><mo>=</mo><msqrt><mfrac><mi>L</mi><mrow><mi>L</mi><mo>+</mo><mn>0</mn><mo>.</mo><mn>01</mn></mrow></mfrac></msqrt></math></p><p><strong>এক দিন সমান ৮৬৪০০ সেকেন্ড</strong></p><p><strong>T<sub>1</sub>= ৮৬৪০০s </strong></p><p>T<sub>2</sub>=86830s</p><p>অতএব <br> ধীরে চলবে(86830s-86400s)=430s</p>
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