Why is it possible to see blue light on one side of an object and orange on the other side when looking in the reflection of a lense?

168 views

[ad_1]

Why is it possible to see blue light on one side of an object and orange on the other side when looking in the reflection of a lense?

In: Physics
[ad_2]

Any transparent material distorts light with a certain strength. This is called refractive index. The problem is, this index varies with wavelength of the light, so one side of the spectrum gets progressively more distorted than the other. In mild cases (when the difference or total distortion isn’t that big), you can see these blue-and-orange thingies. In severe cases, you get a rainbow.

“Lens”, not “lense”.

Lenses are like prisms creating rainbows. Where you have a dark/light boundary you can see the blue end of the rainbow out one side, and on the other side of the object the red end appears.