What is Displacement vector ?
ANSWER:-
It is a vector which gives the position of a point with reference to a point other than the origin of the coordinate system.
★The magnitude of displacement vector called distance formula.
angle of contact.
It is defined as the angle between the tangent to the liquid surface at the point of contact and solid surface inside the liquid is called as angle of contact The value of angle of contact depends upon (i) Nature of solid and liquid in contact (ii) Cleanliness of the surface in contact (iii) Medium above the free surface of liquid
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