1.

While going from alcohol to carbon disulphide, the light rays,a) Speed upb) Slows downc) No change in the speedd) May speed up or slow down​

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Explanation:

The REFRACTIVE index of a medium (n) is equal to the speed of light (c) divided by the VELOCITY of light through the medium (V). Rearranging the EQUATION allows us to see the relationship regarding v. The lower the refractive index, the faster the velocity of light. Medium A has the SMALLER refractive index.



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