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Q.

Which colour of light is deviated the least by the prism in the spectrum of white light?


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a

Violet

b

Green

c

Yellow

d

Red 

answer is D.

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Detailed Solution

The red colour will deviate less when compared to other colours when white light gets dispersed through a glass prism.
The red light is the least deviated among the band of seven colours of white light (VIBGYOR). This is because the wavelength of the red colour is higher, and the deviation is lesser than other colours.
 
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