If a red light ray falls on the following system of prisms. How many colours do we see in the emergent ray?

All 7 distinct colours

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Only 1 white coloured ray

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Only 1 red coloured ray

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Except red all the colours

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Solution

The correct option is C
Only 1 red coloured ray

Single color does not disperse further when incident on the surface of the prism.

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Similar questions

If white ray falls on the system in the given way then how many colours will we see after all dispersion has happened?

If white ray falls on the system as shown in the given diagram, then how many colours will we see after all dispersions have happened?

46^{\circ}

44^{\circ}

43^{\circ}

Prism produces colours by itself when white ray is incident on it.

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