First slide
Surface tension
Question

Consider the following statements.
(A) The small soap bubbles are spherical while large soap bubbles are flat ( oval) in shape
(B) The surface tension of soap bubble decreases with size of bubble.

Select the correct option.
(a) (A) is false, But (B) is true.
(b) Both (A) and (B) are true.
(c) (A) is true, But (B) is false.
(d) Both (A) and (B) are false.

Moderate
Solution

In larger drops gravitational force will dominate surface tension hence larger drops will become flat and can not withstand spherical shape.

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