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When white light is passed through an upside down (inverted) prism then

1. White light is obtained
2. Spectrum is obtained with violet colour undergoing maximum and red colour undergoing minimum deviation
3. spectrum is obtained with red colour undergoing maximum deviation and violet colour undergoing minimum deviation
4. Light gets blocked

Correct answer: Spectrum is obtained with violet colour undergoing maximum and red colour undergoing minimum deviation

Solution

A prism separates white light into its component colours because the refractive index depends on wavelength. Violet light has a higher refractive index in glass, so it bends more, while red bends least; inverting the prism does not change this order of deviation.

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