৩. একটি মাপনী চোঙের সাহায্যে কীভাবে তুমি এক ফোঁটা জলের আপাত আয়তন নির্ণয় করবে?
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Answer:
Count out 100(or 200 as you want ) drops, divide the total volume of water by 100 ( how many drop you kept before) .
now you will have volume of a drop of water .
Explanation:
Let , you count 100 drops .
suppose you measure volume of 100 drop of water is 50 ml.
so volume of a single drop is =50/100= 0.5 ml
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