Derive i+e=A+`delta` for a triangular glass prism.

What is a triangular glass prism?

In dispersion of white light due to a triangular glass prism, the deviation of red colour is less compared to violet colour. The reason …

State the causes of dispersion of white light as it passes through a triangular glass prism.

In the above figure a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a spectrum XY on a screen. State the colour seen at (i) X and (ii) Y.

When a beam of white light is passed through a triangular glass prism, it gets dispersed into its component colours. Why do we get these colours ? In the given figure, the colours X and Y represent the extreme components of the spectrum. Identify X and Y.

What is the angle of a prism? What is its value in case of an equilateral triangular prism?

The graph between angle of deviation (delta) and angle of incidence (i) for a triangular prism is represented by

The refractive indices of the crown glass for violet and red lights are 1.51 and 1.49 respectively and those of the flint glass are 1.77 and 1.73 respectively A prism of angle 6^(@) is made of crown glass .A beam of white light is incident at a small angle on this prism.The other thin flint glass prism is combined white the crown glass prism such that te net mean deviation is 1.5^(@) anticlockwise. (i)Determine the angle of the flint glass prism. (ii)A screen is placed normal to the emerging beam at a distance of 2m from the prism combination.find the distance between red and violet spot on the screen Which is the topmost colour on screen.

Describe the activity to show that the colours of white light splitted by a glass prism can be recombined to get white light by another identical glass prism. Also draw ray diagram to show the recombination of the spectrum of white light.

A parallel beam of light is incident from air at an angle alpha on the side of right angled triangular prism of refractive index mu = sqrt(2) . Light undergoes total internal reflection in the prism at the face PR when alpha has a minimum value of 45^@ . The angle theta of the prism is. .