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प्रश्न
Will the critical angle for the glass-water interface be smaller or larger than that for the glass-air interface?
अति संक्षिप्त उत्तर
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उत्तर
The critical angle for the glass-water interface is larger than that for the glass-air interface because water’s refractive index is higher than air’s, reducing the refractive index contrast between glass and water.
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