Question

(a) Draw a ray diagram showing the formation of image by a reflecting telescope
(b) Write two advantages of a reflacting telescope over a refracting telescope .

Answer 1

(a) Reflacting Telesocple .

(b) (i) Advantages of Reflacting Telescope : In reflecting telescope mirrors are
used which are free from chromatic and spherical abbretion . So, sharp image of the
object is formed
(ii) As mirror used in the telescope reflacts whole light incident on it, formed image
appears bright.