Question

The magnification of a telescope with an objective lens focal length of 80 cm and an eyepiece focal length of 2.0 cm is
O 160x
078x
O40x
082
GPT 3.5
To calculate the magnification of a telescope, we use the formula:

Magnification = focal length of the objective lens / focal length of the eyepiece

Given:
Focal length of the objective lens (F1) = 80 cm
Focal length of the eyepiece (F2) = 2.0 cm

Substituting these values into the formula, we get:

Magnification = 80 cm / 2.0 cm
Magnification = 40x

Therefore, the magnification of the telescope is 40x. Answer choice O40x is correct.

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