Question : A pond of water appears less deep due to:
Option 1: reflection
Option 2: diffraction
Option 3: refraction
Option 4: polarisation
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Correct Answer: refraction
Solution : The correct answer is refraction.
Pond appears shallower because of refraction. Refraction is the phenomenon of bending of light rays when it moves from rarer medium to denser medium. Because of this a pond appears shallower than it actually is. Some examples are- formation of rainbow, sun rays reach the sun before actual sun rise, twinkling of stars etc.
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