General Science • PhysicsMedium
Why does a swimming pool appear to be shallower than its actual measured depth?
A. Reflection of light at the water surface
B. Refraction of light rays passing from water to air✓ Correct Answer
C. Total internal reflection inside the pool floor
D. Dispersion of white light into constituent colors
💡 Solution & Explanation
The apparent shallower depth of a swimming pool is caused by the refraction of light rays as they travel from a denser medium like water into a rarer medium like air, bending away from the normal. Reflection deals with bouncing back of light, while dispersion separates wavelengths. Snell law mathematically governs this bending phenomenon.
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