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OCEAN GODRE Grade: 12
        

 

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


c.coma


d.astimatism


6 years ago

Answers : (1)

Chetan Mandayam Nayakar
312 Points
										

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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Chetan Mandayam Nayakar – IIT Madras

6 years ago
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