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an image of axial poin source is made with a parabolic mirror which is front coated.the image will be free of which  two of the following

a.chromatic abberation

b.spherical abberation



6 years ago


Answers : (1)


Dear Ocean, 

There will be no spherical aberration because in a parabolic mirror, all paraxial rays pass through the focus upon reflection.

The properties of reflection are independent of the wavelength of light. Therefore, there will be no chromatic aberration. 

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6 years ago

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