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COMEDK2016PhysicsRay Optics

Critical angle will be maximum, when light travels from

Options

  1. Aglass to air
  2. Bglass to water
  3. Cwater to air
  4. Ddiamond to air

Correct answer

B. glass to water

Step-by-step solution

The critical angle between two media is given by i_ c = ⁻¹ ( ₁ ₂ ) As we know that, _ air =1, _ water =1.33, _ glass =1.5 and _ diamond =2.4 . From given values, ₁ ₂ is maximum for water-glass interface. So, critical angle will also be maximum, when light travels from glass to water.

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