Which color corresponds to the hottest stars?

• A. Yellow
• B. Red
• C. Orange
• D. Blue

Answer: (D)

Verified step by step guidance

1. Understand that the color of a star is related to its surface temperature due to blackbody radiation, where hotter objects emit light at shorter wavelengths.
2. Recall the order of colors in the visible spectrum from longest to shortest wavelength: Red, Orange, Yellow, Green, Blue, Indigo, Violet.
3. Recognize that stars emitting blue light have higher surface temperatures compared to stars emitting red, orange, or yellow light.
4. Know that red stars are the coolest, yellow stars are intermediate, and blue stars are the hottest.
5. Conclude that the hottest stars correspond to the blue color because blue light has the shortest wavelength and highest energy among the given options.