NAEST 2020: Colors in a Compact Disc and its Mirror Image br

Question: NAEST 2020: Colors in a Compact Disc and its Mirror Image
The colour pattern on the surface of the CD is very different from that in its image in the mirror. This is due to the fact that

1. The wavelength of the reflected light can be different from that of the incident light.
2. The light source used in the experiment emits different colours in different directions.
3. The mirror has some coating that changes the colour of light.
4. The light coming from a portion of CD used to view that portion directly and the light coming from that portion used to view the image, make different angles with the surface of the CD.

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