Q.

The surface temperature of the sun is estimated as –

A. 6000 °C
B. 12000 °C
C. 18000 °C
D. 24000 °C
Answer» A. 6000 °C
Explanation: The surface of the sun is called the photosphere. The photosphere 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.
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