A ray of light is traveling in a glass cube that is totally immersed in water. you find that if the ray is incident on the glass-water interface at an angle to the normal greater than 52.5 ∘, no light is refracted into the water. part a what is the refractive index of the glass?

if the object, ends up with a positive charge, then it is missing electrons. if it is missing electrons, then it must have been removed form the object during the rubbing process.

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AarushiAanand AarushiAanand · Answer 2 · 2022-08-05T16:16:26+02:00

f the ray is incident on the glass-water interface at an angle to the normal greater than 52.5 ∘ then Refractive index of the glass will be 1.26 by critical angle.

What is Refractive index?

The optical medium's refractive index would be a dimensionless number that indicates how well the medium bends light. The refractive index controls however much light would be refracted or twisted when it enters a substance.

What is critical angle ?

Critical angle, in optics, the greatest angle at which a ray of light, travelling in one transparent medium, can strike the boundary between that medium and a second of lower refractive index without being totally reflected within the first medium.

critical angle = [tex]sin^{-1} (1/n)[/tex]

Put the value of critical angle in above equation.

52.5° = [tex]sin^{-1}(1/n)[/tex] = 1.26

Refractive index of the glass will be 1.26

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