X disproved the Earth-centric argument of Y and showed that the Sun was the centre of the solar system. Identify X and Y.

X- Copernicus, Y- Galileo

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X- Ptolemy, Y Galileo

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X- Ptolemy, Y- Copernicus

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X- Copernicus, Y- Ptolemy

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Solution

The correct option is D X- Copernicus, Y- Ptolemy
It was initially believed that Earth was the centre of the universe following the Geocentric theory of Greek scholar Ptolemy. Around 1514 CE, Copernicus from Poland came up with a new model of the universe placing Sun in the centre.

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