A hobby telescope consists of an objective lens having focal length of 76cm and an eyepiece having a focal length of 8.2mm. We view the planet Jupiter with this telescope. We do this at the time of year when we are closest to Jupiter. (a) Determine the diameter of the image of Jupiter generated by the objective lens. (b) Determine the angular size of Jupiter as viewed through the eyepieces. (c) Determine how far must I place a marble (1-cm diameter) from my eye to get the similar angular size as in part (b)?