Question

Colour of a star gives us the idea about its

• A. Weight
• B. Distance
• C. Size
• D. Temperature

Answer 1

The correct option is D

Temperature

Explanation for correct option:

1. The colour of the star tells us about the temperature of the star.
2. When the object is hot the particle inside it moves. The hotter the object faster the particles move and radiate more energy.

Explanation for incorrect option:

Option A

Weight of the star cannot be estimated based on colour therefore it's incorrect

Option B

Distance is independent of colour of light coming from the star therefore it is also incorrect

Option C

Size too has no relation to the colour of light emitted by a star.

Thus, the colour of a star gives us an idea about its temperature.

Hence, the correct option is (D).