Question

Two triangular glass prisms are kept together connected through their rectangular side.Alight beam is passed through one side of the combination.will there be any dispersion? justify your answer

Answer 1

Answer:

Yes there will be dispersion.

Answer 2

No dispersion occurs.

Explanation:

• The given setup will behave like a glass slab, resulting in recombination of the seven colours to produce white light.
• The first prism causes dispersion of white light into seven colours while the second prism combines the seven colours to get the white light.
• Hence, recombination occurs. So, no dispersion occurs.