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Physics - Wave Optics

Practise 107 NTA Abhyas (JEE Main) questions on Wave Optics. Each question shows a quick preview so you can jump straight to the topic you want to revise.

Wave Optics has been asked in 0 of the 25 years of NTA Abhyas (JEE Main) papers analysed (2002–2026), with 107 questions in all. 100% of them were easy, 0% moderate and 0% tough. Most of its questions came from 2026, with 0 questions that year. In the last three years (2024–2026) it had 0 questions across 49 papers, about 0 per paper.

All of the chapter's questions come from a single topic, Uncategorized.

  1. 1In the hydrogen spectrum the wavelength of H λ line is 656 nm whereas, in the spectrum of a distant galaxy the H λ line has a wavelength of
  2. 2Unpolarized light of intensity I is incident on a system of two polarizers, A followed by B . The intensity of emergent light is I 2 . If a
  3. 3In the figure shown plane waves are refracted from air to water using Huygen's principle a , b , c , d , e are lengths on the diagram. The r
  4. 4A ray of light of intensity I is incident on a parallel glass-slab at the point A and it undergoes partial reflection and refraction as show
  5. 5In YDSE a parallel beam of incident light consists of two wavelengths λ 1 = 4000 A ∘ and λ 2 = 5600 A ∘ . The minimum distance y on the scre
  6. 6A mixture of light, consisting of wavelength 590 nm and an unknown wavelength, illuminates Young's double-slit setup and gives rise to two o
  7. 7White light is used to illuminate the two slits in Young's double-slit experiment. The separation between the slits is d and the distance be
  8. 8A ray of light is incident at an angle of 45 o (relative to the normal) on a thin film of a liquid with an index of refraction of 2 . Assumi
  9. 9The intensity ratio of two coherent sources of light is P . They are interfering in the same region and produce an interference pattern. The
  10. 10In a Young s double slit experiment using monochromatic light of wavelengths , the intensity of light at a point on the screen with a path d
  11. 11In Young's double slit experiment, how many maxima can be obtained on a screen (including central maxima), if d = 5 λ 2 (where λ is the wave
  12. 12An unpolarized light of intensity I 0 passes through three polarizers, such that the transmission axis of last polarizer is perpendicular to
  13. 13In a double-slit experiment, the two slits are 1 mm apart and the screen is placed 1 m away. A monochromatic light of wavelength 500 nm is u
  14. 14A monochromatic beam of light falls on Young's double slit experiment apparatus as shown in figure. A thin sheet of glass is inserted in fro
  15. 15Consider two polaroids A and B as shown. Unpolarised light is incident on polaroid A . Now, both the polaroids are rotated simultaneously by
  16. 16In Young’s double-slit experiment, the distance between the two identical slits is 6 . 1 times larger than the slit width. Then the number o
  17. 17A ray of light passes four transparent glass slabs having refractive indices 1 , 2 , 3 and 4 as shown in the figure. If the emergent ray C D
  18. 18A monochromatic plane wave of speed c and wavelength λ is diffracted at a small aperture. The diagram illustrates successive wavefronts (vib
  19. 19In YDSE apparatus as shown in figure wavelength of light used in λ . The screen is moved away from the source with a constant speed V. Initi
  20. 20In the YDSE shown below, two slits are covered with thin sheets having a thickness t and 2 t and refractive indices 2 μ and μ respectively.
  21. 21In a YDSE bi-chromatic light of wavelengths, 400 nm and 560 nm are used. The distance between the plane of the slits is 0 . 1 mm and the dis
  22. 22In two setups of Young's double-slit experiment, if lights used have the ratio of wavelengths as 1 : 2 , then fringes of equal width are obs
  23. 23Young's double-slit experiment is performed in a liquid. The 10 t h bright fringe in case of the liquid lies where 6 t h bright fringe lies
  24. 24In Young's double-slit experiment, 12 fringes are obtained on a certain segment of the screen when light of wavelength 600 nm is used. If th
  25. 25For what distance ray optics is a good approximation when the aperture is 4 mm and the wavelength of light is 400 nm ?
  26. 26A plane mirror of length 30 cm is placed horizontally along with a vertical screen. A monochromatic point source of light is placed 20 cm to
  27. 27In Young’s double-slit experiment, the two slits, 0 . 12 mm apart, are illuminated by monochromatic light of wavelength 420 nm . If the scre
  28. 28Two coherent light beams of intensity I and 4 I are superposed. If the maximum and minimum possible intensities in the resulting beam are I
  29. 29In standard Young s double-slit experiment, visible light 350 nm , 750 nm is used in both the slits. Distance between the slits is 2 mm , an
  30. 30In young double slit experiment, the wavelength of red light is 7 8 0 0 Å and that of blue light is 5200 Å The value of n for which n th bri
  31. 31In a special arrangement of Young s double-slit experiment, the distance between the slits d is twice the distance between the screen and th
  32. 32An interference is observed due to two coherent sources A and B separated by a distance 4 λ along Y-axis where λ is the wavelength of the li
  33. 33If a torch is used in place of monochromatic light in Young's experiment what will happens?
  34. 34Two beams of light having intensities I and 4 I , interfere to produce a fringe pattern on a screen. The phase difference between the beams
  35. 35A thin film of soap solution μ s = 1.4 lies on the top of a glass plate μ g = 1.5 . When visible light is incident almost normal to the plat
  36. 36Young's double-slit experiment is carried out by using green, red and blue light using one colour at a time. The fringe widths recorded are
  37. 37Unpolarized light of intensity 32 W m - 2 passes through three polarizers arranged such that the transmission axes of the first and the last
  38. 38Radio waves coming at ∠ α to vertical are received by radar after reflection from a nearby water surface and directly. The height of the ant
  39. 39Fraunhofer diffraction pattern of a single slit is obtained in the focal plane of the lens of focal length 1 m . The third minimum is formed
  40. 40In a special arrangement of Young's double-slit experiment, the distance between the slits d is twice the distance between the screen and th
  41. 41Unpolarized light of intensity 32 W m - 2 passes through three polarizers arranged such that the transmission axes of the first and the last
  42. 42When an object is viewed with a light of wavelength 6000 Å under a microscope, its resolving power is 10 4 . The resolving power of the micr
  43. 43First diffraction minimum due to a single slit of width 10 - 4 c m is at θ = 30 o . The wavelength of the light used is
  44. 44The limit of resolution of a 100 cm telescope for λ = 5000 Å is equal to
  45. 45Yellow light is used in a single slit diffraction experiment with slit width of 0 . 6 mm . If yellow light is replaced by X-rays, then the o
  46. 46Four monochromatic and coherent sources of light emitting waves in phase at placed on y axis at y = 0 , a , 2 a and 3 a . If the intensity o
  47. 47In Fraunhofer diffraction experiment, L is the distance between screen and the obstacle, b is the size of obstacle and λ is wavelength of in
  48. 48In the adjacent diagram, CP represents wavefront and AO and BP corresponding two rays. One particular condition on θ for destructive interfe
  49. 49A screen is at a distance D = 80 cm from a diaphragm having two narrow slits S 1 and S 2 which are d = 2 mm apart. The slit S 1 is covered b
  50. 50In the YDSE arrangement shown here, the intensity on the screen due to slit-2 is four times that of slit-1. If resultant intensity at the po

Frequently Asked Questions

1.How many questions are available for Wave Optics?

This chapter includes 107 NTA Abhyas (JEE Main) questions.

2.Are these questions only from NTA Abhyas (JEE Main), or from other exams too?

These are NTA Abhyas (JEE Main) questions specifically for the Wave Optics chapter. Questions from other exams like JEE Main or JEE Advanced are organised separately under their respective exam sections.

3.What is the difficulty level of Wave Optics questions in NTA Abhyas (JEE Main)?

Of the 107 questions analysed for this chapter, 100% are easy, 0% moderate and 0% tough. 2026 had the most, with 0 questions.

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

All of this chapter's questions come from a single topic: Uncategorized.