A) সান্দ্রতা
B) পৃষ্ঠটান
C) ঘনত্ব
D) পৃষ্ঠ ও তরলের মধ্যবর্তী স্পর্শ কোণ
সঠিক উত্তর: D
স্পর্শ কোণের মান নির্ধারণ করে যে একটি তরল পৃষ্ঠের উপর ছড়িয়ে পড়বে কিনা।
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