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Question : 5
Total: 9
SECTION -C
(a) Draw a ray diagram showing the formation of image by a reflecting telescope.
(b) Write two advantages of a reflecting telescope over a refracting telescope.
Solution:
(a) Ray Diagram for reflecting Telescope
(b) Two advantages of it over refracting type of telescope
(a) Ray Diagram Arrow marking
(b) Advantages
(i) Spherical aberration is absent.
(ii) Chromatic aberration is absent.
(iii) Mounting is easier.
(iv) Polishing is done on only one side.
(v) Light gathering power is more.
(b) Two advantages of it over refracting type of telescope
(a) Ray Diagram Arrow marking
(b) Advantages
(i) Spherical aberration is absent.
(ii) Chromatic aberration is absent.
(iii) Mounting is easier.
(iv) Polishing is done on only one side.
(v) Light gathering power is more.
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