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Question
Assertion :Droplets of liquid are usually more spherical in shape than large drops of the same liquid. Reason: Force of surface tension predominates the force of gravity in case of small drops.
Assertion :Droplets of liquid are usually more spherical in shape than large drops of the same liquid. Reason: Force of surface tension predominates the force of gravity in case of small drops.
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The reason any droplet is spherical is due to the surface area to volume ratio. A sphere is the shape with the smallest surface area to volume ratio, as opposed to a square or triangle. Larger ones are affected by the weight and normal forces which exceed the ability of the surface tension to keep the drop in spherical shape. In a zero gravity environment all droplets would be spherical.
The reason any droplet is spherical is due to the surface area to volume ratio. A sphere is the shape with the smallest surface area to volume ratio, as opposed to a square or triangle. Larger ones are affected by the weight and normal forces which exceed the ability of the surface tension to keep the drop in spherical shape. In a zero gravity environment all droplets would be spherical.
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