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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Question : Why does the water tank appear shallower when viewed from the top?
Option 1: Due to reflection
Option 2: Due to refraction
Option 3: Due to diffraction
Option 4: Due to total internal reflection
Question : Which one of the following processes is responsible for the glittering of air bubbles rising through water?
Option 1: Reflection of light
Option 2: Refraction of light
Option 3: Total internal reflection of light
Option 4: Scattering of light
Question : The sky appears blue because of
Option 1: Atmospheric water vapour
Option 2: Scattering of light
Option 3: Reflection on sea water
Option 4: Emision of blue wavelength by the sun
Question : Which phenomena show the particle nature of light?
Option 1: Diffraction
Option 2: Interference
Option 3: Photoelectric effect
Option 4: Polarisation
Question : A mirage occurs because of:
Option 1: reflction by hot ground
Option 2: total internal reflection by layers of air
Option 3: interference of light
Option 4: diffraction of light
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