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होम › भौतिकी › Optics - Refraction

Optics - Refraction — Physics Questions & Practice

7 Optics - Refraction questions from Physics for competitive exams such as UPSC, Banking, SSC and Railway. Read the worked questions below, check every answer with an explanation, and track what you get wrong. का अभ्यास करें

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Optics - Refraction पर अभ्यास प्रश्न — उत्तर सहित

Try each question first, then open the answer. Explanations are included.

1. A medium has a refractive index of 1.25. What is the speed of light in this medium? (n = c/v, c = 3 x 10^8 m/s)

  1. A2.4 x 10^8 m/s
  2. B1.92 x 10^8 m/s
  3. C2.88 x 10^8 m/s
  4. D3.36 x 10^8 m/s
उत्तर दिखाएँ

उत्तर: A

v = c/n = (3x10^8)/1.25 = 2.4 x 10^8 m/s.

2. A medium has a refractive index of 1.6. What is the speed of light in this medium? (n = c/v, c = 3 x 10^8 m/s)

  1. A1.875 x 10^8 m/s
  2. B1.5 x 10^8 m/s
  3. C2.625 x 10^8 m/s
  4. D2.25 x 10^8 m/s
उत्तर दिखाएँ

उत्तर: A

v = c/n = (3x10^8)/1.6 = 1.875 x 10^8 m/s.

3. A medium has a refractive index of 1.2. What is the speed of light in this medium? (n = c/v, c = 3 x 10^8 m/s)

  1. A2.5 x 10^8 m/s
  2. B1.5 x 10^8 m/s
  3. C2.0 x 10^8 m/s
  4. D3.5 x 10^8 m/s
उत्तर दिखाएँ

उत्तर: A

v = c/n = (3x10^8)/1.2 = 2.5 x 10^8 m/s.

4. A medium has a refractive index of 1.3. What is the speed of light in this medium? (n = c/v, c = 3 x 10^8 m/s)

  1. A2.3077 x 10^8 m/s
  2. B1.8462 x 10^8 m/s
  3. C2.7692 x 10^8 m/s
  4. D3.2308 x 10^8 m/s
उत्तर दिखाएँ

उत्तर: A

v = c/n = (3x10^8)/1.3 = 2.3077 x 10^8 m/s.

5. A medium has a refractive index of 1.33. What is the speed of light in this medium? (n = c/v, c = 3 x 10^8 m/s)

  1. A2.2556 x 10^8 m/s
  2. B1.8045 x 10^8 m/s
  3. C2.7067 x 10^8 m/s
  4. D3.1578 x 10^8 m/s
उत्तर दिखाएँ

उत्तर: A

v = c/n = (3x10^8)/1.33 = 2.2556 x 10^8 m/s.

Optics - Refraction और प्रश्न हल करें

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