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Class 9 Physics Assignment Answer
No educational institution is holding annual exams this 12 months due to the present coronavirus. So considering every scholar, the Board of Secondary and Higher Secondary Education instructs the students to arrange assignments. And primarily based on that instruction, from November 1, 2021, all the students of all of the tutorial institutions all through the nation started the undertaking preparation actions.
Since based in your undertaking you will be handed to the next class. So we want to say that this undertaking is crucial for you. So each of it’s finest to make the class 9 physics undertaking very fantastically with utmost significance. So which you can transfer the next class fantastically.
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Class 9 Physics Assignment Answer – 18th Week
Since physics is a bit troublesome subject. So lots of you could’t clear up the reply to a physics undertaking by your self. So lots of you will be looking for options to fifth Week class 9 physics assignments on-line.
Class 9 Physics Assignment
৯ম শ্রেণির পদার্থবিজ্ঞান অ্যাসাইনমেন্ট প্রশ্নের সমাধান
So for you, we’ve printed the reply to the undertaking in fifth Week class 9 physics proper right here. So acquire the questions and options of sixth Week class 9 physics undertaking from beneath.
And let me let you already know – it was a 100% proper reply. So you could full your undertaking by downloading the reply to your undertaking from proper right here.
নবম শ্রেণীর পদার্থবিজ্ঞান অ্যাসাইনমেন্ট
৩। 120°c তাপমাত্রার একখন্ড বস্তুর ভর 50gm। বস্তুটিকে একটি 50gm ভরের অ্যালুমিনিয়ামের ক্যালােরিমিটারে 20°c তাপমাত্রার 150gm পানিতে ছেড়ে দেয়ার পর মিশ্রণের তাপমাত্রা 30°c পাওয়া গেল। বস্তুটির আপেক্ষিক তাপ 1500Jkg–1 Ok–1 এবং অ্যালুমিনিয়ামের আপেক্ষিক তাপ 900Jkg–1 Ok–1।
1. পদার্থ বিজ্ঞানের ক্রমবিকাশ কীভাবে ঘটেছে তা নিয়ে একটি প্রতিবেদন রচনা কর।
ক. তাপধারণ ক্ষমতা কাকে বলে?
খ. মাটির কলসিতে পানি ঠান্ডা থাকে কেন? ব্যাখ্যা কর।
গ. বস্তু কর্তৃক বর্জিত তাপ নির্ণয় কর।
ঘ. উপরােক্ত তথ্যগুলাে ক্যালরিমিতির মূলনীতিকে সমর্থন করে কিনা- গাণিতিকভাবে বিশ্লেষণ কর।
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