Bottom of a tank containing water appears to be raised. It is due to
- A. Reflection of light
- B. Refraction of light ✓
- C. Interference of light
- D. Diffraction of light
Correct Answer: B. Refraction of light
Explanation
The apparent raising of the bottom of a water tank is an optical effect caused by the refraction of light as it travels from water (denser medium) into air (rarer medium).
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