The value of the contact angle for kerosene w | vedclass

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(A) The contact angle is defined as the angle between the tangent to the liquid surface at the point of contact and the solid surface inside the liqui

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$0$

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(A) The contact angle is defined as the angle between the tangent to the liquid surface at the point of contact and the solid surface inside the liquid.For liquids that wet the solid surface,the contact angle is acute $(Kerosene is a liquid that wets most solid surfaces easily.Experimental observations show that the contact angle for kerosene with a clean solid surface is $0^{\circ}$.

The value of the contact angle for kerosene with a solid surface is ........ $^o$.

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