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Author Question: A telescope is constructed with two lenses separated by a distance of 25 cm. The focal length of the ... (Read 29 times)

B

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on: Aug 10, 2020

Question 1

A plane convex lens is made of glass (n = 1.5) with one flat surface and the other having a radius of 20 cm. What is the focal length (in cm) of the lens?

◦
20

◦
30

◦
40

◦
10

◦
50


Question 2

A telescope is constructed with two lenses separated by a distance of 25 cm. The focal length of the objective is 20 cm. The focal length of the eyepiece is 5 cm. Calculate the magnitude of the angular magnification of the telescope.

◦
6

◦
4

◦
8

◦
10

◦
5
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Marked as best answer by B on Aug 10, 2020

sierrahalpin

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Reply #1 on: Aug 10, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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B

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Reply 2 on: Aug 10, 2020
Wow, this really help

xiaomengxian

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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