1.

Complete the following or Solve and fill in the blanks :Speed of light in the first medium (v1)Speed of light in the second medium (v2)Refractive index 2n1Refractive index 2n13 × 108 m/s1.2 × 108 m/s————————–————————–————————–2.25 × 108 m/s4/3————————–2 × 108 m/s————————————————–1.5

Answer»
Speed of light in the first medium (v1)Speed of light in the second medium (v2)Refractive index 2n1Refractive index 2n1
3 × 108 m/s1.2 × 108 m/s2.50.4
3 × 108 m/s2.25 × 108 m/s4/30.75
2 × 108 m/s3 × 108 m/s2/31.5

Formula:

2n1 = v1/v2, 1n2 = v2/v1


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