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Question
Pick up the correct statement from the following :
Options:
A .  in astronomical telescope, the rays from the object after refraction at the objective are brought to a focus before entering the eyepiece to produce a real inverted image in front of the eye piece
B .  in Galileo's telescope, the rays from the object get refracted at the objective and are intercepted by the eyepiece before a real image is formed
C .  a line passing through the optical centre of the objective traversing through the eyepiece, is called line of sight
D .  all the above.
Answer: Option D
Answer: (d).all the above.
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