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Physics - Wave Optics

Practise 51 AIIMS previous year questions on Wave Optics, compiled from papers spanning 2001 to 2019. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty AIIMS tests.

Wave Optics has been asked in 18 of the 19 years of AIIMS papers analysed (2001–2019), with 51 questions in all. 53% of them were easy, 35% moderate and 12% tough. Most of its questions came from 2018, with 5 questions that year. In the last three years (2017–2019) it had 11 questions across 5 papers, about 2.2 per paper.

The chapter's 5 topics are not weighted equally: Interference of Light (14 questions, 27%), Youngs Double Slit Experiment (13 questions, 25%), and Diffraction of Light (12 questions, 24%) have been asked the most. Youngs Double Slit Experiment has produced the most tough questions (3).

  1. 1In a Young's double slit experiment, a light of wavelength falls on it. Its slits separation is and distance between plane of slits and scre26 May, 2019Youngs Double Slit Experiment
  2. 2Assertion : Diffraction is common in sound but not common in light waves. Reason : Wavelength of light is more than the wavelength of sound.26 May, 2019Diffraction of Light
  3. 3The distance between the first dark and bright fringes formed in Young's double slit experiment with band width is25 May, 2019Youngs Double Slit Experiment
  4. 4Light of wavelength falls on a single slit of width . The second minima will be formed for the angle of diffraction of25 May, 2019Diffraction of Light
  5. 5The head lights of a jeep are apart. If the pupil of the eye of an observer has a diameter of and light of wavelength is used, what should b27 May, 2018Interference of Light
  6. 6Assertion : Colours are seen in thin layers of oil on the surface of water. Reason : White light is composed of several colours.27 May, 2018Interference of Light
  7. 7In a single slit diffraction the distance between plane of slit and screen is . The size of the slit is and second maximum is formed at the 26 May, 2018Diffraction of Light
  8. 8Light is incident on a polarizer with intensity . A second prism called analyzer is kept at a angle of , from the first polarizer then the i26 May, 2018Polarization of Light
  9. 9Assertion : In Young's double slit experiment, interference pattern disappears when one of the slits is closed. Reason : Interference occurs26 May, 2018Interference of Light
  10. 10Two slits are separated by a distance of 0.5 mmand illuminated withlight of wavelength . If the screen is placed at from the slits. The dist2017Youngs Double Slit Experiment
  11. 11Assertion : Two point coherent sources of light and are placed on a line as shown. and are two points on that line. If at point maximum inte2017Interference of Light
  12. 12In a Fraunhofer diffraction at single slit of width with incident light of wavelength 5500 , the first minimum is observed, at angle . The f2016Diffraction of Light
  13. 13The intensity ratio of the maxima and minima in an interference pattern produced by two coherent sources of light is . The intensities of th2016Youngs Double Slit Experiment
  14. 14The two coherent sources with intensity ratio produce interference. The fringe visibility will be2016Interference of Light
  15. 15Assertion : In YDSE bright and dark fringe are equally spaced. Reason : It only depends upon phase difference.2016Youngs Double Slit Experiment
  16. 16In a certain double slit experimental arrangement, interference fringes of width each are observed when light of wavelength is used. Keeping2015Youngs Double Slit Experiment
  17. 17In a Young's double slit experiment the intensity of light when slit is at distance from central is I. What will be the intensity at the dis2014Youngs Double Slit Experiment
  18. 18Polaroid glass is used in sun glasses because2013Polarization of Light
  19. 19In a Young's double slit experiment the spacing between the slits is and the screen is kept at a distance of . The second bright fringe is f2013Youngs Double Slit Experiment
  20. 20Assertion : When light ray is incident at polarising angle on glass, refracted light is partially polarised. Reason : The intensity of light2013Polarization of Light
  21. 21Two sinusoidal waves of intensity having same frequency and same amplitude interferes constructively at a point. The resultant intensity at 2012Interference of Light
  22. 22In Young's double slit experiment, fringe order is represented by , then fringe width is2012Youngs Double Slit Experiment
  23. 23A light ray is incident on a glass slab, it is partially reflected and partially transmitted. Then the reflected ray is2012Polarization of Light
  24. 24In an interference, the intensity of two interfering waves are and respectively. They produce intensity at two points and with phase angle o2011Interference of Light
  25. 25In a single slit diffraction with and a lens of diameter then width of central maxima, obtain on screen at a distance of will be2011Diffraction of Light
  26. 26Which out of following, cannot produce two coherent sources?2009Interference of Light
  27. 27In Young's double slit experiment, the two slits act as coherent sources of equal amplitude and of wavelength . In another experiment with t2009Youngs Double Slit Experiment
  28. 28In Young's double slit experiment, the distance between two slits is made three times then the fringe width will become2008Youngs Double Slit Experiment
  29. 29Light is incident normally on a diffraction grating through which the first diffraction is seen at \(32^{ }\). In this case the second order2008Diffraction of Light
  30. 30A point source is kept at a distance of \(1000 {~m}\) has an illumination \(I\). To change the illumination to \(16 I\) the new distance sho2007Interference of Light
  31. 31Assertion : A white source of light during interference forms only white and black fringes. Reason : Width of fringe is inversely proportion2007Diffraction of Light
  32. 32Which of the following diagrams represents the variation of electric field vector with time for a circularly polarized light?2006Polarization of Light
  33. 33When exposed to sunlight, thin films of oil on water often exhibit brilliant colours due to the phenomenon of2005Interference of Light
  34. 34In case of linearly polarised light, the magnitude of the electric field vector2005Polarization of Light
  35. 35Assertion : The clouds in sky generally appear to be whitish. Reason : Diffraction due to clouds is efficient in equal measure at all wavele2005Diffraction of Light
  36. 36Sodium lamps are used in foggy conditions because2004Polarization of Light
  37. 37A monochromatic beam of light is used for the formation of fringes on the screen by illuminating the two slits in the Young's double slit in2004Youngs Double Slit Experiment
  38. 38When a compact disc is illuminated by a source of white light, coloured lines are observed. This is due to2004Diffraction of Light
  39. 39Assertion : A red object appears dark in the yellow light. Reason : The red colour is scattered less.2004Polarization of Light
  40. 40Assertion : At the first glance, the top surface of the Morpho butterfly's wing appears a beautiful blue-green. If the wing moves the colour2004Interference of Light
  41. 41When a beam of light is used to determine the position of an object, the maximum accuracy is achieved if the light is2003Wave Theory and Wavefronts
  42. 42A double slit experiment is performed with light of wavelength . A thin film of thickness and refractive index 1.5 is introduced in the path2003Youngs Double Slit Experiment
  43. 43Light propagates rectilinearly because of its2002Wave Theory and Wavefronts
  44. 44Golden view of sea shell is due to2002Polarization of Light
  45. 45Assertion : Coloured spectrum is seen when we look through a muslin eloth. Reason: It is due to the diffraction of white light on passing th2002Diffraction of Light
  46. 46Assertion : When tiny circular obstacle is placed in the path of light from some distance, a bright spot is seen at the centre of the shadow2002Diffraction of Light
  47. 47Assertion : Thin films such a soap bubble or a thin layer of oil on water show beautiful colours when illuminated by white light. Reason : I2002Interference of Light
  48. 48Two coherent monochromatic light beams of amplitude 3 and 5 units are superposed. The maximum and minimum possible intensities in the result2001Interference of Light
  49. 49If red light is replaced by white light then width of diffraction pattern will2001Diffraction of Light
  50. 50Assertion : Skiers uses air glasses. Reason : Light reflected by snow is partially polarised.2001Polarization of Light

Frequently Asked Questions

1.How many questions are available for Wave Optics?

This chapter includes 51 questions compiled from AIIMS papers spanning 2001 to 2019.

2.Are these questions only from AIIMS, or from other exams too?

These are AIIMS questions specifically for the Wave Optics chapter. Questions from other exams like NEET or JIPMER are organised separately under their respective exam sections.

3.Is Wave Optics an important chapter for AIIMS Physics?

Wave Optics has appeared in 18 of the 19 years of AIIMS papers covered here, with 51 questions across 20 papers - about 3 per paper it appears in.

4.What is the difficulty level of Wave Optics questions in AIIMS?

Of the 51 questions analysed for this chapter, 53% are easy, 35% moderate and 12% tough. 2018 had the most, with 5 questions.

5.Which topics in Wave Optics should I focus on?

These topics have carried the most weightage in Wave Optics:

  • Interference of Light - 14 questions (27%)
  • Youngs Double Slit Experiment - 13 questions (25%)
  • Diffraction of Light - 12 questions (24%)
  • Youngs Double Slit Experiment has produced the most tough questions (3).
6.Is Wave Optics's weightage in AIIMS going up or down?

Across all 20 papers analysed, Wave Optics has averaged about 2.5 questions per paper. In the last three years (2017–2019), that average has stayed about the same, at about 2.2 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.