Assertion (A): Statement-1. The dispersive power of a lens of focal length \( 10 \mathrm{~cm} \)...

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Assertion (A): Statement-1. The dispersive power of a lens of focal length \( 10 \mathrm{~cm} \) is \( 0.08 \). Longitudinal chromatic aberration of the lens would be \( 0.8 \mathrm{~cm} \).
Reason (R): Statement-2. It follows from \( f_{r}-f_{v}=\omega . f \)
(A) Both A and R are true and R is the correct explanation of A.br(B) Both A and R are true, but R is not the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.
(E) Both A and R are false.
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