AIIMS2012Physics-Optics
AIIMS 2012 Physics Chromatic Aberration Assertion Reason Question
Type: Assertion Reason-conceptual-Medium-Class 12
Assertion : A thick lens shows more chromatic aberration. Reason : Thick lens has more than thin lenses.
A
If both assertion and reason are true and reason is the correct explanation of assertion.
B
If both assertion and reason are true but reason is not the correct explanation of assertion.
C
If assertion is true but reason is false.
D
If both assertion and reason are false.
Correct Answer
Option C
Detailed Explanation
Lenses have different refractive index for different wavelengths of light. The refractive index decreases with increasing wavelength. So red light will bend least and violet most. This will result is slight dispersion which will be seen as chromatic aberration.
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