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| 1. |
The rays of different colours fail to converge at a point after going through a converging lens. This defect is called(a) spherical aberration (b) distortion(c) coma (d) chromatic aberration |
| Answer» (d) Since refractive index for different wave length of light is different. Hence the different colours of light forms images at different position. This phenomenon is called chromatic aberration. | |