Question : In diffraction of white light by a prism, which colour of light from VIBGYOR will be bent most?
Option 1: Red
Option 2: Yellow
Option 3: Green
Option 4: Violet
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Correct Answer: Violet
Solution : The correct answer is Violet .
The formation of the spectrum known as VIBGYOR (Violet, Indigo, Blue, Green, Yellow, Orange, and Red) is caused by the dispersion phenomenon.
The amount by which light is bent (refracted) as it passes through a prism depends on its wavelength. Different colours of light have different wavelengths, with violet light having the shortest wavelength and red light having the longest wavelength.
In a prism, shorter wavelengths (like violet) are refracted more than longer wavelengths (like red). Therefore, in the VIBGYOR spectrum, violet light is bent the most, and red light is bent the least.
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