Please solve this. Since it is of 4 marks so if diagram will be required to be made then please give that too.
Q.i) If a monochromatic beam of light undergoes minimum deviation through an equiangular prism, how does the beam pass through the prism, with respect to its base?
Q.ii) If white light is used in the same way as in (i) above, what change is expected in the emergent of beam?
Dear Student,
1) If the monochromatic beam suffers a minimum deviation then the angle of refraction must be 37.2 degrees and will be bending towards the normal. While passing through the given prism, the ray of light will be bent by the same amount. So we will see a ray of light that enters into the prism, bent by a certain amount, and the same color ray coming out from the prism.
2) When white light passes through a prism, the white light is separated into its component colours –red, indigo, orange, yellow, green, blue and violet and each color is bent by a different amount so we will get a rainbow.
Regards
1) If the monochromatic beam suffers a minimum deviation then the angle of refraction must be 37.2 degrees and will be bending towards the normal. While passing through the given prism, the ray of light will be bent by the same amount. So we will see a ray of light that enters into the prism, bent by a certain amount, and the same color ray coming out from the prism.
2) When white light passes through a prism, the white light is separated into its component colours –red, indigo, orange, yellow, green, blue and violet and each color is bent by a different amount so we will get a rainbow.
Regards