Physics · Human Eye and Colourful World

When we observe a star near the horizon, it appears to be slightly higher in the sky than it really is. What is the reason for this?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1The star becomes brighter, making it seem higher.
2The atmosphere bends the starlight due to gradual changes in refractive index.✓
3The Earth's rotation shifts the star upward.
4The star moves rapidly and changes its position.

Correct answer

The atmosphere bends the starlight due to gradual changes in refractive index.

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