NEET Physics: Wave Optics — MCQ Test 19

Q6. What causes the intensity of light to be zero at certain points in a diffraction pattern?

Q7. What is the frequency of light with a wavelength of \( 510 \, \text{nm} \) in air, given the speed of light in air is \( 3.0 \times 10^8 \, \text{m/s} \)?

Q8. What is the distance of the fifth bright fringe from the central maximum in a double-slit experiment if \( \lambda = 490 \, \text{nm} \), \( d = 0.5 \, \text{mm} \), and \( D = 1.0 \, \text{m} \)?

Q9. What is the frequency of light with a wavelength of \( 600 \, \text{nm} \) in air, given the speed of light in air is \( 3.0 \times 10^8 \, \text{m/s} \)?

Q10. What is the condition for the fifth minimum in a single-slit diffraction pattern?

NEET Physics — Wave Optics

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What is the shape of the wavefront after a plane wave passes through a thin prism?

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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 Wavefront, Position, Diffraction, Wavelength, Intensity, and Experiment.

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 shape of the wavefront after a plane wave passes through a thin prism?

  • A. Spherical
  • B. Tilted plane
  • C. Cylindrical
  • D. Curved

Q2. What is the angular position of the first minimum in a single-slit diffraction pattern if the slit width is \( 8.0 \, \mu\text{m} \) and the wavelength is \( 640 \, \text{nm} \)?

  • A. 5.7°
  • B. 3.0°
  • C. 4.6°
  • D. 8.6°

Q3. In a diffraction pattern, what happens to the angular width of the central maximum if the slit width is doubled?

  • A. Doubles
  • B. Quadruples
  • C. Remains the same
  • D. Halves

Q4. What is the intensity at a point in a double-slit experiment where the phase difference is \( 3\pi \), if the maximum intensity is \( 4I_0 \)?

  • A. \( 2I_0 \)
  • B. \( I_0 \)
  • C. \( 0 \)
  • D. \( 4I_0 \)

Q5. What is the speed of light in a medium with refractive index 1.25, given the speed in vacuum is \( 3.0 \times 10^8 \, \text{m/s} \)?

  • A. \( 2.4 \times 10^8 \, \text{m/s} \)
  • B. \( 2.0 \times 10^8 \, \text{m/s} \)
  • C. \( 3.0 \times 10^8 \, \text{m/s} \)
  • D. \( 1.5 \times 10^8 \, \text{m/s} \)

+ 5 more questions in the actual test

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