Final answer:
To determine the magnification needed to produce an image in which the flu virus is 2.6 cm in diameter, the magnification factor can be found by dividing the size of the image by the size of the object. The magnification needed is 2.6 x 10^5.
Step-by-step explanation:
To determine the magnification needed to produce an image in which the flu virus is 2.6 cm in diameter, we first need to find the magnification factor. Magnification is defined as the ratio of the size of the image to the size of the object. In this case, the size of the object (the flu virus) is 130 nm and the size of the image (2.6 cm).
Magnification = Size of Image / Size of Object
Magnification = (2.6 cm) / (130 nm)
First, we convert the size of the object from nanometers (nm) to centimeters (cm).
1 nm = 1 x 10^-7 cm
130 nm = (130 x 10^-7) cm = 1.3 x 10^-5 cm
Now we can calculate the magnification:
Magnification = (2.6 cm) / (1.3 x 10^-5 cm) = 2.6 x 10^5
Therefore, a magnification of 2.6 x 10^5 is needed to produce an image in which the flu virus is 2.6 cm in diameter.