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EnglandPhysicsQuick questions

Component 3 Light, Nuclei and Options

Quick questions on Refraction of light: Snell's law, the critical angle, total internal reflection and optical fibres - Eduqas A-Level Physics

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Define the refractive index of a medium. [1 mark]
What is q2?
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Light passes from air into a medium of refractive index 1.331.33 at an angle of incidence of 3030^\circ. Find the angle of refraction. [2 marks]
What is q3?
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State the condition for total internal reflection to occur. [2 marks]

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