MCQ
One face of a rectangular glass plate $6 \mathrm{~cm}$ thick is silvered. An object held $8 \mathrm{~cm}$ in front of the first face, forms an image $12 \mathrm{~cm}$ behind the silvered face. The refractive index of the glass is
- A$0.4$
- B$0.8$
- ✓$1.2$
- D$1.6$
