Guys can u say how did 1/f=0 please
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power is defined as any emergent point of final rays to intresect in real. ...
Explanation:
but as you see here the rays are initially also parallel and after also parallel...that it seems as there is nothing divergence or convergence occurs....just like a parallel glass slab..
though....for image formation we virtually converge the rays ...after refraction..
but net affect finally its parallel to initial...
☆Power=0
or 1/f=0
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