A sheet can be made water proof by coating it with a substance that changes the angle of contact
(a) To ^/2
(b) To zero
(c) From acute to obtuse
(d) From obtuse to acute

Question

A sheet can be made water proof by coating it with a substance that changes the angle of contact (a) To ^/2 (b) To zero (c) From acute to obtuse (d) From obtuse to acute

Saurabh Koranglekar · Answer

If the clothes are sprayed with waterproofing agent, then itchanges the angle of contact from acute to obtuse, in this way, water beads up on the surface and does not easily penetrate the clothing.

Vikas TU · Answer

If the clothes are sprayed with waterproofing agent, then it changes the angle of contact from acute to obtuse, in this way, water beads up on the surface and does not easily penetrate the clothing.

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A sheet can be made water proof by coating it with a substance that changes the angle of contact (a) To ^/2 (b) To zero (c) From acute to obtuse (d) From obtuse to acute

A sheet can be made water proof by coating it with a substance that changes the angle of contact
(a) To ^/2
(b) To zero
(c) From acute to obtuse
(d) From obtuse to acute

2 Answers

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