Question

Galileo devised a simple terrestrial telescope that producesanupright image. It consists of a converging objective lens andadiverging eyepiece at opposite ends of the telescope tube.Fordistant objects, the tube length is the objective focal lengthlessthe absolute value of the eyepiece focal length.

(a) Does the user of the telescope see a realorvirtual image?

1

Virtual Image RealImage

(b) Where is the final image? (For values of infinity,enter999 as your answer.)
q_e = 2

(c) If a telescope is to be constructed with a tube 9.8 cm long anda magnification of 2.20, what are the focal lengths of theobjectiveand eyepiece?
f_eyepiece = cm <======Incorrect and needHelp!!!
f_objective = cm <======Incorrect andNeedHelp!!!

I have answered all the parts but the lasttwo.Can anyone help?

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