The following model shows the growth of a specimen by 1 hr. The length of the microbe grown in 1 hr is .

0 .001 m m

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0 .003 m m

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0 .005 m m

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Solution

The correct option is C $0 .005 m m$
Size of specimen before 1 hour :

There are 1 flat and 4 units.

This is equivalent to 0.104

Size of specimen after 1 hour :

There are 1 flat and 9 units.

This is equivalent to 0.109

The difference in lengths = 0.109 - 0.104 = 0.005

Hence, the microbe has grown 0.005mm in an hour.

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