Physics · Fluid Mechanics
पानी की सतह पर मच्छरों के लार्वा आसानी से तैरते रहते हैं, परन्तु पानी में क्या छिड़क देने पर उसका पृष्ठ तनाव कम हो जाता है जिससे वे डूब जाते हैं?
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