GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Materials for rain-proof coats and tents owe their water-proof properties to
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elasticity
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viscosity
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specific gravity
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surface tension
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Explanation:
Detailed explanation-1: -The correct answer is Surface tension.
Detailed explanation-2: -Option A Solution: Materials for rain proof coats and tents owe their water proof properties to Surface Tension. The surface of a liquid behaves like an elastic membrane and therefore, has a tendency to contract. This property of liquid is called Surface Tension.
Detailed explanation-3: -Waterproof material used for raincoats is tested for its level of absorption or ability to repel moisture. containing a bath of the appropriate waterproofing materials. Chemicals are allowed to soak into the fabric. After the material leaves the bath, it is heated so the chemicals soak evenly into the fabric.
There is 1 question to complete.