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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
Refractive index for a material for infrared light is
  • A
    Equal to that of ultraviolet light
  • ✓
    Less than for ultraviolet light
  • C
    Equal to that for red colour of light
  • D
    Greater than that for ultraviolet light
✓

Answer

Correct option: B.
Less than for ultraviolet light
b
( b)$\mu \propto \frac{1}{\lambda }$

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