when a Ray is refracted from one medium to another the wavelength changes from 6000 Armstrong to 4000 Armstrong the critical angle of the interface will be
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Answer:Refractive Index n = sin i/sin r => n = wavelength(air)/wavelength(medium) = 6000/4000 = 1.5. Critical angle c occurs when i = 90°. n = sin 90°/ sin c => 1.5 = 1/sin c => c arcsin (1/1.5) = 41.81°.
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The critical angle of the interface is
Explanation:
Given that,
Wavelength
Wavelength
We need to calculate the refractive index
Using formula of refractive index
Put the value into the formula
We need to calculate the critical angle of the interface
Using formula of critical angle
Put the value into the formula
Hence, The critical angle of the interface is
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Topic : critical angle
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