Multiple choice

The temperature of the sun's outer surface is

  1. <span style="font-family:" arial;="" font-size:="" small;="">7200°C°C

  2. 6000°C

  3. <span style="font-family:" arial;="" font-size:="" small;="">5600°C

  4. <span style="font-family:" arial;="" font-size:="" small;="">4800°C

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Sun's photosphere (visible surface) has a temperature of approximately 5,500°C or 5,778 K. Option B (6000°C) is the closest approximation given. The other options are either too low or too high. This is standard astronomical data about our Sun.