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Seg - op 6.4 dutch telescope, Exercise, What do we need – 3B Scientific SEK Optics User Manual

Page 73: Conducting the experiment, 1 seg - op 6.4 dutch telescope

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Exercise

Examine the operating principle of a Dutch telescope!

What do we need?

1

Base plate

1

Dispersing lens “

−100”

1

Focusing lens “+300”

1

Mask

Conducting the experiment

1.

Attach the mask to the base plate!

2.

Place the “

−100” lens and the ”+300” lens onto the optical axis as marked on the base plate! The

distance between the lenses must be approx. 16 cm!

3.

Direct the base plate with both lenses onto a distant object (window, tree etc.)!

4.

Move both lenses until you get a focussed image!

5.

Describe your observations! Name the features of the image!

6.

Name fields of application for a Dutch telescope!

ELWE

Physical experiments for education in natural science and engineering

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1 SEG - OP 6.4

Dutch Telescope