If 15 um size object is observed under light microscope, using 5X eyepiece and 10X objective, its magnified image size will be:
Correct answer: A. 750 um
- A. 750 um
- B. 50 um
- C. 500 um
- D. 250 um
Explanation
Recall the formula for magnification, where Image Size (I)= Actual Size (A) x Magnification (M), or I=A x M. The magnification is the product of the eyepiece lens and objective lens' respective magnifications so; M= 5 x 10 = 50. The question asks for the size of the image so; I=A x M = 15 x 50 = 750 um.
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