[" Draw a labelled ray diagram of astronomical telescope used in the normal adjustment positior "],[" Write the expression for its magnifing power.the same magnifying power.The ratio of apertures "],[" the astronomical telescopes "T_(1)" and "T_(2)" have the same the same magnifing power.The ratio of apertures "],[" their phich one of the two produces image of greater intensity? "],[" (b) Which one of the two has larger resolving power? "],[" Explain your answer in each case."]