NEET Physics: Wave Optics — MCQ Test 6

Q6. What is the refractive index of a medium if the critical angle for light passing into air is \( 48.6^\circ \)?

Q7. What is the angular position of the second minimum in a single-slit diffraction pattern if the slit width is \( 2.0 \, \mu\text{m} \) and the wavelength is \( 400 \, \text{nm} \)?

Q8. What is the speed of light in a medium with refractive index 1.35, given the speed in vacuum is \( 3.0 \times 10^8 \, \text{m/s} \)?

Q9. What is the path difference for the third bright fringe in a double-slit experiment?

Q10. Why does the wave theory predict that light bends towards the normal when entering a medium where its speed is lower?

NEET Physics — Wave Optics

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What is the nature of light waves demonstrated by polarization?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Wave Optics. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Demonstrated, Polarization, Refractive, Refracted, Wavefront, and Increases.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. What is the nature of light waves demonstrated by polarization?

  • A. Transverse
  • B. Longitudinal
  • C. Stationary
  • D. Mechanical

Q2. What is the refractive index of a medium if the speed of light in it is \( 2.1 \times 10^8 \, \text{m/s} \) and in vacuum is \( 3.0 \times 10^8 \, \text{m/s} \)?

  • A. 1.5
  • B. 1.33
  • C. 1.43
  • D. 1.67

Q3. What happens to the refracted wavefront when light enters a medium where its speed increases?

  • A. Bends towards the normal
  • B. Bends away from the normal
  • C. Remains unchanged
  • D. Becomes spherical

Q4. What is the phase difference corresponding to a path difference of \( 7\lambda/4 \) in a double-slit experiment?

  • A. \( 3\pi \)
  • B. \( \pi \)
  • C. \( \frac{7\pi}{2} \)
  • D. \( 2\pi \)

Q5. What ensures that the laws of reflection hold true when derived using the wave model?

  • A. Frequency matching
  • B. Amplitude variation
  • C. Wavelength adjustment
  • D. Equal angles of incidence and reflection

+ 5 more questions in the actual test

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