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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A thin liquid film formed between a U-shaped wire and a light slider supports a weight of 1.5 × 10^−2 N (see figure). The length of the slider is 30 cm and its weight negligible. The surface tension of the liquid film is

A thin liquid film formed between a U-shaped wire and a light slider supports a weight of 1.5 × 10^−2 N (see figure). The length of the slider is 30 cm and its weight negligible. The surface tension of the liquid film is

each of radius 2 mm fall through aiir at a terminal velocity of 8 cm/s. If they coalesce to form a single drop n drops of water then the terminal velocity of the combined drop is 32 cm/s. Find n.