English, asked by pragaathi363, 7 months ago

Disadvantages of telescope any 3​

Answers

Answered by pranavkumbhar6866
1

Answer:

Disadvantages:

Very high initial cost relative to reflector.

A certain amount of secondary spectrum (chromatic aberration) unavoidable (reflector completely free of this) The colours cannot focus at one point.

Long focal ratios can mean that the instrument is cumbersome.

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