Physics, 13.11.2019 06:31 corynanderson16

Atelescope has an objective for focal length 800mm and eyepiece of focal 20 mm. it’s magnification will be

Atelescope has an objective for focal length 800mm and eyepiece of focal 20 mm. it’s magnification w

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Atelescope has an objective for focal length 800mm and eyepiece of focal 20 mm. it’s magnification w...

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