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

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.

To calculate the magnification of a telescope, you can use the formula:

Magnification = (Objective lens focal length) / (Eyepiece focal length)

In this case, the objective lens focal length is 80 cm and the eyepiece focal length is 2.0 cm.

Let's substitute the values into the formula:

Magnification = 80 cm / 2.0 cm

Now let's calculate the magnification:

Magnification = 40x

Therefore, the correct answer is 40x.

To calculate the magnification of a telescope, we use the formula:

Magnification = (Focal Length of Objective Lens) / (Focal Length of Eyepiece)

Given:
Focal Length of Objective Lens = 80 cm
Focal Length of Eyepiece = 2.0 cm

Now, let's substitute the given values into the formula:

Magnification = (80 cm) / (2.0 cm)

Simplifying the expression:

Magnification = 40

Therefore, the magnification of the telescope is 40x.