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प्रश्न
Why are free liquid drops and bubbles always spherical in shape?
लघु उत्तर
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उत्तर
Free liquid drops and bubbles are spherical because of surface tension. Surface tension tends to reduce the surface area of a liquid to the minimum possible value. For a given volume, a sphere has the minimum surface area. Hence, free liquid drops and bubbles naturally acquire a spherical shape.
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