Learn Easy পরিমাপের একক // মৌলিক একক এবং যৌগিক একক - The basic unit And Compound unit Learn Easy

Описание к видео Learn Easy পরিমাপের একক // মৌলিক একক এবং যৌগিক একক - The basic unit And Compound unit Learn Easy

মৌলিক একক এবং যৌগিক একক - The basic unit And Compound unit Learn Easy

আমরা প্রতিদিন বিভিন্ন কাজে পরিমাপ করি। যেমন: সময় বলার সময়, জিনিস কেনার সময়, জ্বর মাপার সময়। তাই আমাদের একটি নির্দিষ্ট একক প্রয়োজন। এর জন্য একটি পরিমাপ করার সাধারণ পদ্ধতি রয়েছে। এর নাম এস.আই পদ্ধতি। এর পূর্ণরূপ হলো ইন্টারন্যাশনাল সিস্টেম অব ইউনিট। ১৯৬০ সালে এই পদ্ধতি পৃথিবীর সমস্ত দেশে এই পদ্ধতি চালু হয়। এই পদ্ধতিতে পৃথিবীর সকল দেশ সকল ভৌত রাশির জন্য শুধু একটি নির্দিষ্ট একক ব্যবহার করে। মৌলিক কোনো রাশি মাপার জন্যও এস.আই কর্তৃক মৌলিক কিছু একক দেওয়া হয়েছে। এগুলোকে মৌলিক একক বলে।

মৌলিক একক কাকে বলে?
যৌগিক একক কাকে বলে?
মৌলিক একক কয়টি?
মৌলিক এককগুলো কি কি? লিখ।
উদাহরণসহ মৌলিক এককগুলোর পরিচয় দাও।


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