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Wax is coated on the inner wall of a
capillary tube and the tube is then dipped
water. Then, compared to the unwaxed
capillary, the angle of contact theta and the height h Upto which water rises change.
These changes are:
1)Theta increases and h also increases
2)Theta decreases and h also decreases
3)Theta increases and h decreases
4)Theta decreases and h increases

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