What are the important equations and ideas I am suppose toknow to answer this pr

Question

What are the important equations and ideas I am suppose toknow to answer this problem? A telescope has lenses with foacl lengths f1=+30 cm, f2=+5.0cm a) What distance between the two lenses will allow thetelescpore to fouse on an infinetly distan object and produce aninfinitely distant image? b) What distance between the lenses will allow the telescopeto focus on an object that is 5m away and to produce an infinitelydistante image? What are the important equations and ideas I am suppose toknow to answer this problem? A telescope has lenses with foacl lengths f1=+30 cm, f2=+5.0cm a) What distance between the two lenses will allow thetelescpore to fouse on an infinetly distan object and produce aninfinitely distant image? b) What distance between the lenses will allow the telescopeto focus on an object that is 5m away and to produce an infinitelydistante image?

Explanation / Answer

to answer this questions you should know about lenses and theirrelation with distances and I hope you will look in the internet,and it is very appriciable of you to ask how to know rather thanasking a direct question

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