Question

Observational report laboratory

Analyze and explain

I saw the image of my classmate> up side down and enlarged closer to me.

Astronomical Telescope- using the conversing lens of longest focal length as the objective and the length of shortest focal length as the eyepiece, construct an astronomical telescope. Draw a diagram showing the position of the two lenses, their distance apart and the positions of their focal points. Show also where the images of a distant object will be formed. With one eye observe a distant brick wall or the object through the telescope and with the other eye observe the wall without the telescope. Note the apparent size of the image of some bricks as seen through the telescopes compared with the actual size of the bricks as seen by the unaided eye. A good way to estimate this is holding a caliper at arm’s length and adjusting the caliper to match the apparent size of the bricks when looking with and without the telescope. Estimate the magnifying power obtained in this manner and compare with the value obtain from the ratio of the focal lengths.

Answer 1

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