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Sahay Sir > Question Answers > NCERT Exemplar Class 11 > Physics > Chapter 14 - Waves > A U-tube contains water and methylated spirit separated by mercury. The mercury columns in the two arms are in level with 10.0 cm of water in one arm and 12.5 cm of spirit in the other. What is the specific gravity of spirit ?

A U-tube contains water and methylated spirit separated by mercury. The mercury columns in the two arms are in level with 10.0 cm of water in one arm and 12.5 cm of spirit in the other. What is the specific gravity of spirit ?

2 loops 3 loops and 4 loops Show that when a string fixed at its two ends vibrates in 1 loop the frequencies are in the ratio 1 : 2 : 3 : 4.