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Classical Mechanics Level 1

What is causing the reversal of the colors in the glass?

Interference Refraction Total internal reflection Principle of superposition

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Calvin Lin by Calvin Lin

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1 solution

Nihar Mahajan
Sep 20, 2015

103 Helpful 13 Interesting 8 Brilliant 7 Confused

Does refraction from air to water not cause light to bend towards the normal? I thought that was how it works when light goes from a less dense medium to a more dense one. @Nihar Mahajan

Maytar Neev - 5 years, 8 months ago

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I apologize for that. I don't know why I wrote that. Thanks , I have replaced the deceptive part :)

Nihar Mahajan - 5 years, 8 months ago

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If the lights bent towards the normal line, they wouldn't switch color then. Have you got any explanation for me to that? Thanks :)

Vitta Arfiana - 5 years, 8 months ago

I think the answer is wrong. Correct answer is total internal reflection

Muhammad Ahmad - 5 years, 2 months ago

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I first thought the same way as you but now I think the answer is refraction this is because if total internal reflection would happen the image would not be seen on the other side of the glass it was due to refraction that you can see the image on the other side of the glass.

prakhar mishra - 4 years, 12 months ago

Nicely explained. Nice use of colours.

Satyajit Mohanty - 5 years, 8 months ago

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Thanks bro! :)

Nihar Mahajan - 5 years, 8 months ago

As long as we see a 180 degrees rather than a 90 degrees, there should not be doubt.

Lu Chee Ket - 5 years, 8 months ago

Point to ponder is that in interference phenomena colours are not separate they are submerged

Junaid Khan - 4 years, 11 months ago

@Nihar Mahajan what is the principle of superposition?

Mrinal Agarwal - 4 years, 11 months ago

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When an object is being observed in a different state of matter the image becomes superpositioned in a direction. I.e. observing a fish swimming in water the light will refract "x" amount in coordination with the angle in which the light penetrates the water. I.e. observing the area of air above the engine cabinet on a motor vehicle after it has been parked, one will observe that the light will refract "x" amount in coordination with the change in temperature of the air being heated.

Lucas Boulley - 2 years, 2 months ago

Nice solution.!

Rishu Jaar - 3 years, 7 months ago

Very challenging question for questioning the basics of electricity!!

Lucas Boulley - 2 years, 2 months ago

actually its not only due to refraction but refraction oin a lens @Mohamed Elsayed

Shubham tripathi - 1 year, 7 months ago

Nice illustration, but I must raise the point that even without refraction the transmitted blue and red light will respectively be on the left and right. I think that without refraction our eyes would not be able to perceive the image as such because the angular separation between the incoming rays that may enter an observer's eyes simultaneously would be too small for the rays to overlap. Of course this can be remedied if the observer stands at a sufficient distance away.Thoughts?

Mohamed Elsayed - 5 years, 3 months ago

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