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HPCET Optical Path — practice questions

Explore 1 free Optical Path questions in HPCET Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Optical Path questions and exercises with answers

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The optical path of a 3 cm ray in flint glass (n = 1.6) equals that of an unknown medium (n = 1.25) over distance $x$. Then $x$ is:Read the answer and worked solution →

Worked practice questions

The optical path of a 3 cm ray in flint glass (n = 1.6) equals that of an unknown medium (n = 1.25) over distance $x$. Then $x$ is:

  1. 3.0 cm
  2. 3.84 cm
  3. 2.34 cm
  4. 4.8 cm
Show answer and solution

Correct answer: B. 3.84 cm

Optical path = $n \cdot $ geometric path. **So $1.6 \times 3 = 1.25 \times x$ ⇒ $x = 4.8/1.25 = 3.84$ cm.**

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