Question

17. The frequency of vibration of a string depends on the
length L between the nodes, the tension F in the string
and its mass per unit length m. Guess the expression
for its frequency from dimensional analysis.
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Answer 1

Explanation:

Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities. When ozone forms air pollution, it's also called smog