1. A certain compound microscope magnifies an image 1200 times. If the eyepiece

Question

1. A certain compound microscope magnifies an image 1200 times. If the eyepiece is replaced with a lense with twice the power, the image will be magnified by a factor of ?

2. If the eyepiece on a compound microscope has a power of 25 diopters, what is the focal length of the eyepiece?

3. A 2mm object is magnified 500 times by a compound microscope. The magnitudes of the focal lengths of the eyespiece and the objective are 1 cm and 0.5 cm respectively. What is the distance between two lenses when the object is in focus?

Please show all your calculations.

Explanation / Answer

Part A)

The magnification would double.

That is 2400 times

Part B)

f = 1/25

f = .04 m (4 cm)

Part C)

M = L(25)/(fo)(fe)

500 = 25L/(1)(.5)

L = 10 cm

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