Physics – Surface Tension MCQs TEST (Maharashtra HSC Board)
Physics – Surface Tension – TEST (MCQ Maharashtra HSC Board)
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#1 9 Raincoats have coatings that are waterproof because
#2 If a liquid is at critical temperature, the surface tension will be
#3 As the length of capillary tube is insufficient, the rise of liquid in it will be up to the top, in the absence of
#4 What is the cause of surface tension?
#5 Why do chalk particles cling to a black board?
#6 How does the angle of contact of a liquid change when its temperature is raised?
#7 When a shaving brush is removed from water, the hairs cling together because of
#8 A 10 cm long needle can just rest on the surface of water without wetting, its weight is (assume surface tension of water is 0.07 N/m)
#9 The molecules on the surface of the liquid have
#10 When two small drops of a liquid join to form a bigger one, energy is
#11 If drop of oil is placed on the surface of water, which of the following takes place?
#12 Two capillary tubes of diameters 1 cm and 2 cm are dipped into water. The rise of the water is?
#13 The spherical shape of a rain drop is due to
#14 Why does kerosene rise in the wick of a kerosene lamp?
#15 Writing directly on blotting paper with an ink pen is not practical because of