Optical telescopes are made of_________.

only lenses

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only mirrors

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combination of lenses and mirrors

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None of the above

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Solution

The correct option is C combination of lenses and mirrors
Optical telescopes are used to see visible lights coming from the space and use both lenses and mirrors according to the type of telescope.

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Optical telescopes are made of_________.

The correct option is C combination of lenses and mirrorsOptical telescopes are used to see visible lights coming from the space and use both lenses and mirrors according to the type of telescope.

The correct option is C combination of lenses and mirrors
Optical telescopes are used to see visible lights coming from the space and use both lenses and mirrors according to the type of telescope.