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9. Ray optics abd optical instruments — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics9. Ray optics abd optical instruments1 Mark
MCQ
For refraction through a small angled prism, the angel of deviation :
  • A
    increases with the increase in $R.I$. of prism.
  • B
    will decrease with the increase in $R.I$. of prism.
  • C
    is directly proportional to the angle of prism.
  • ✓
    Both $(A)$ and $(C)$
✓

Answer

Correct option: D.
Both $(A)$ and $(C)$
d
$d=A(\mu-1)$

hence $d \propto A$

and also increase with increase in refractive index of prism.

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