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Refraction of Light at Plane Surfaces — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsRefraction of Light at Plane Surfaces1 Mark
MCQ
The critical angle for glass-air interface is : ________ .
  • A
    24°
  • B
    48°
  • ✓
    42°
  • D
    45°
✓

Answer

Correct option: C.
42°
42°

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