Which of the following silvered lenses kept in air may form real image of a real object.
Select all that apply

Question

Which of the following silvered lenses kept in air may form real image of a real object.

G1 Physics · Accepted Answer

Derived solution: Step 1: Use the thin-lens formula 1/f = 1/v - 1/u with m = v/u. For lens material/medium changes use the lens-maker relation with the relative refractive index; powers of thin lenses in contact add. Step 2: Test each statement independently using these relations and the data/figure. Step 3: The statements that satisfy the required optical conditions are A: Image 1; C: Image 3. Hence the correct answer is A,C.