TS EAMCET · Physics · Ray Optics
At what distance from a biconvex lens of the focal length \(F\), must be placed an object for the distance between the object and its real image to be minimal?
- A \(2 F\)
- B \(F\)
- C \(\frac{F}{2}\)
- D \(4 F\)
Answer & Solution
Correct Answer
(A) \(2 F\)
Step-by-step Solution
Detailed explanation
Minimum distance of an object and its' real image is \(4 F\). For this, object must be placed at distance \(2 F\) from lens.
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