Question

A microscope is set so it makes an object appear 4 x 10`2 times larger than its actual size. A virus has a diameter of of 2 x 10`-7 meter. how large will the diameter of the virus appear when it is viewed under the microscope.

Answer 1

`2\cdot10^(-7)\ meter\ \rightarrow\ \ the\ actual\ size\\\\scale=4\cdot10^2\\\\the\ size\ under\ the \ microscope\ \\\\=4\cdot10^2\cdot2\cdot10^(-7)\ meter=8\cdot10^(-5)\ meter\\\\Ans.\ the\ size\ under\ the \ microscope\ is\ 8\cdot10^(-5)\ meter.`