## a. 800b. \text { inverted }

#### Topics

Electromagnetic Waves

Wave Optics

### Discussion

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##### Christina K.

Rutgers, The State University of New Jersey

##### Andy C.

University of Michigan - Ann Arbor

##### Marshall S.

University of Washington

### Video Transcript

So we have the a preacher diameter off your keys. Refracting telescope is one meter, and the focal length of the objective is 20 meter. And we're assuming that the focal length of the eyepiece is 2.5 centimeters, which is 2.5 times 10 to the negative to Witter. So, in part A, we're trying to find the magnification of the Mars on the telescope, Huh? So the magnification, if we use the definition of the magnification, is basically the ratio between the objective focal length and the eye piece for collect. So that is going to give us 20 over 2.5 times 10 to the negative two, and this is going to be 800. So the magnification is 800 and in part B and this part since standard astronomical telescope in verse, the image the observed Martian polar caps are actually upside down.

University of Wisconsin - Milwaukee

#### Topics

Electromagnetic Waves

Wave Optics

##### Christina K.

Rutgers, The State University of New Jersey

##### Andy C.

University of Michigan - Ann Arbor

##### Marshall S.

University of Washington