Question

A photograph of a bacteria enlarged 50,000 times attains a length of 5 em as shown in the diagram. What is the actual length of the bacteria? If the photograph is enlarged 20,000 times only, what would be its enlarged length ?

Answer 1

Actual Length of the bacteria =$\frac{5}{50000}$cm
=${10}^{-4}$ cm
When the photograph of a bacteria enlarged 50,000 times attains a length = 5 cm
When the photograph of a bacteria enlarged 20,000 times attains a length = $\frac{5}{50000}\times 20000$ cm
= 2cm