What is the total magnification of a microscope with two lenses when one lens has a magnification of 15, and the other lens has a magnification of 30? a. 15 b. 30 c. 45 d. 450

The right option is; d. 450

Magnification is the measure of the ability of any optical instruments such as a lens to enlarge (magnify) an object in an image.  To calculate the total magnification of an image that is viewed through the microscope, the power of the objective is multiplied by the power of the eyepiece.

As given in the question, the magnification of the two lenses are 15 and 30.  

Magnification = 30 X 15 = 450

Therefore, the total magnification of the microscope is 450.

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