Question

Answer these brain teasers ...!​

Answer 1

Answer:

For soap solution.

Periodically rub the brush against the side of the needle so fresh bubble solution can continue to drip down the needle. With an eyedropper, slowly place colored water into the manometer. Because of the surface tension of the soap film, you will notice a higher pressure on the needle end of the manometer.

2. Gravity stretches the stream, then surface tension pinches it into spheres. Flotation of objects denser than water occurs when the object is nonwettable and its weight is small enough to be borne by the forces arising from surface tension.