JEE Mains · Physics · STD 12 - 9. Ray optics and optical instruments
A hemispherical glass body of radius \(10\, cm\) and refractive index \(1.5\) is silvered on its curved surface. A small air bubble is \(6\, cm\) below the flat surface inside it along the axis. The position of the image of the air bubble made by the mirror is seen
- A \(14\, cm\) below flat surface
- B \(20\, cm\) below flat surface
- C \(16\, cm\) below flat surface
- D \(30\, cm\) below flat surface
Answer & Solution
Correct Answer
(B) \(20\, cm\) below flat surface
Step-by-step Solution
Detailed explanation
Given, radius of herrispherical glass \(\mathrm{R}=10\, \mathrm{cm}\) \(\therefore\) Focal length \(\mathrm{f}=\frac{10}{2}=-5 \,\mathrm{cm}\) \(\mathrm{u}=(10-6)=-4\, \mathrm{cm}\) By using mirror formula,…
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