Physics

The size of a bacteria is 1 µ. Find the number of bacteria in 1m length.

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Given,

Size of a bacteria = 1 µ

Total length = 1m

∴ Number of bacteria in 1m length = $\dfrac{1 m}{ 1 µ}$

As we know, 1 µ = 10^-6m, substituting the value in the relation above we get:

Number of bacteria in 1m length = $\dfrac{1 m}{10^{-6}m}$

Hence,
number of bacteria in 1m length = 10⁶ bacteria.

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