The raincoats are made waterproof by coating | vedclass

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(C) The correct option is $C$.Raincoats are coated with a hydrophobic material that increases the angle of contact between the water droplets and the

Vedclass · Accepted Answer

Increase the angle of contact

Vedclass · Answer

(C) The correct option is $C$.Raincoats are coated with a hydrophobic material that increases the angle of contact between the water droplets and the fabric surface.When the angle of contact is obtuse (greater than $90^{\circ}$),the liquid does not wet the surface.This prevents the water from penetrating the fabric,thereby making the raincoat waterproof.

The raincoats are made waterproof by coating them with a material,which ............

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