AP EAMCET · PHYSICS · Ray Optics
An achromatic combination of lenses produces
- A images in black and white
- B coloured images
- C images unaffected by variation of refractive index with wavelength
- D highly enlarged images are formed
Answer & Solution
Correct Answer
(C) images unaffected by variation of refractive index with wavelength
Step-by-step Solution
Detailed explanation
The image of an object in white light formed by a lens is usually coloured and blurred. This defect of image is called chromatic aberration and arises due to the fact that focal length of a lens is different for different colours. In case of two thin lenses in contact, the…
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