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Question

The splitting of white light into seven colors is known as ______.


A
Reflection
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B
Refraction
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C
Interference
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D
Dispersion
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Solution

The correct option is D Dispersion
$$ \bf{Reflection} $$ is the phenomenon in which light rays on striking a polished surface(such as a mirror) bounce back or are sent back into the same medium. 

$$ \bf{Refraction} $$ of light is the phenomenon of bending of light or change in the direction of light, when it passes obliquely from one transparent medium to another.

When two light waves of some frequency travelling in the same direction superimpose, then, a new wave pattern of alternate maxima and minima is formed, this phenomenon is known as $$ \bf{Interference} $$.
$$\bf{Dispersion} $$ is the phenomenon of splitting of white light into its seven component colours (VIBGYOR) on passing through a glass prism.
Hence, the answer is OPTION D. 

Physics
NCERT
Standard XII

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