在望遠(yuǎn)鏡中,物鏡的作用是使遠(yuǎn)處的物體在物鏡的______附近成實(shí)像,目鏡的作用是把這個(gè)像______.天文望遠(yuǎn)鏡的在望遠(yuǎn)鏡中,物鏡的作用是使遠(yuǎn)處的物體在物鏡的______附近成實(shí)像,目鏡的作用是把這個(gè)像______.天文望遠(yuǎn)鏡的物鏡口徑做得較大,是為了______,使成的像更加明亮.
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