AP EAMCET · PHYSICS · Ray Optics
The distance between an object and its real image formed by a lens is ' \(\mathrm{D}\) '. If the magnification is ' \(m\) ', the focal length of the lens is
- A \(\left(\frac{m-1}{m}\right) D\)
- B \(\frac{m D}{m+1}\)
- C \(\frac{(m-1) D}{m^2}\)
- D \(\frac{m D}{(m+1)^2}\)
Answer & Solution
Correct Answer
(D) \(\frac{m D}{(m+1)^2}\)
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