MCQ

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Consider three converging lenses $ L_1, L_2$ and $L_3 $ having identical geometrical construction. The index of refraction of $ L_1$ and $L_2$ are $\mu_1$ and $\mu_2$ respectively. The upper half of the lens $L_3$ has a refractive index $\mu_1$ and the lower half has $\mu_2$. A point object $O$ is imaged at $O_1$ by the lens $L_1$ and at $O_2$ by the lens $L_2 $ placed in same position. If $L_3$ is placed at the same place:

• A
  There will be an image at $O_1$
• B
  There will be an image at $O_2$
• ✓
  The only image will form somewhere between $O_1$ and $O_2$
• D
  The only image will form away from $O_2$