Which pair of substances among the following would float in a tumbler half-filled with water ?

(a) Cotton thread, thermocol

(b) Feather, plastic ball

(c) Pin, oil drops

(d) Rubber band, coin

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Solution

All the materials, which are lighter than water, float on water. Here feather and plastic ball are lighter than water. So, option (b) is the correct answer.

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Which pair of substances among the following would float in a tumbler half-filled with water ? (a) Cotton thread, thermocol (b) Feather, plastic ball (c) Pin, oil drops (d) Rubber band, coin

All the materials, which are lighter than water, float on water. Here feather and plastic ball are lighter than water. So, option (b) is the correct answer.

Which pair of substances among the following would float in a tumbler half-filled with water ?

(a) Cotton thread, thermocol

(b) Feather, plastic ball

(c) Pin, oil drops

(d) Rubber band, coin