The phase change in reflected wave, when light wave suffers reflection at the interface from air to glass is
A
0
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B
π2
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C
π
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D
2π
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Solution
The correct option is Cπ When a light is reflected from denser to rarer medium there is no phase change in light. when a light is reflected from rarer to denser medium there is a phase change of π. So, here air is rarer than glass. So, there is a phase change of π when light from air to glass under go reflection.