Question

light of wavelength 500 angstrom is travelling in air a thin glass plate of new 1.5 of thickness one micrometre is placed in the path of light the change in page of light is

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Answer 1

Answer:

Δx=(μ−1)t=(1.5−1)×10−3=5×10−4m

ϕ=2πλΔx=2π5×10−7×5×10−4=2000π

2000π