Statement-1 : The dispersive power of a lens of focal length `10 cm` is `0.08`. Longitudinal chromatic aberration of the lens would be `0.8 cm`.
Statement-2 : It follows from `f_( r) - f_(v) = omega.f`

Options

A. Statement-1 is true, Statement-2 is true.
Statement-2 is correct explanation of Statement-1.
B. Statement-1 is true, Statement-2 is true, but Statement-2 is not a correct explanation of Statement-1.
C. Statement-1 is true, Statement-2 is false.
D. Statement-1 is fasle, Statement-2 is true.

Answer

A

Explanation

Longitidinal chromatic aberration
`(f_( r) - f_( v)) = omega f = 0.08 xx 10 = 0.8`
Both the statement are true and latter is correct explanation of the former.