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The surface temperature of the sun is estimated as
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- 6000 °C
- 12000 °C
- 18000 °C
- 24000 °C
Correct Option: A
The surface of the sun is called the photo-sphere. The photo-sphere is 340 miles thick and it’s temperature s range from 5,500°C to 6,000°C. It has dark spots called sunspots which are the only solar activity observable by the naked eye.
