HomeTestsSearchRankProfile

Diffraction Questions

Practice 8 Diffraction questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

๐Ÿ“š
8
Total Questions
๐ŸŸข
0
Easy
๐ŸŸก
7
Medium
๐Ÿ”ด
1
Hard
Practice by Exam:Physics(7)PHYSICS(1)

About Diffraction โ€” practice questions, PYQs & concepts

Diffraction is a frequently-tested topic on Physics, PHYSICS. ExamTest.live currently lists 8 Diffraction questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year โ€” every answer key is free, no sign-up required.

Diffraction weight in competitive exams

Across our Diffraction question bank, the largest sources are Physics (7) and PHYSICS (1). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 0 easy Diffraction questions are available โ€” build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right โ€” the explanation often surfaces a faster approach you can reuse.

All Diffraction Questions(1โ€“8 of 8)

Filter:
Q1mediummcqPHYSICSNEET 20192026
The angular width of the central maximum in the Fraunhofer diffraction for is . When the same slit is illuminated by another monochromatic light, the angular width decreases by . The wavelength of this light is:
Q2mediummcqPhysicsAIEEE2026
If is the intensity of the principal maximum in the single slit diffraction pattern, then what will be its intensity when the slit width is doubled?
Q3mediummcqPhysicsAIEEE2026
In an experiment, electrons pass through a narrow slit of width โ€˜ โ€™. They are detected on a screen at a distance โ€˜ โ€™. Which graph correctly represents the number of electrons detected as a function of the detector position ( corresponds to the middle of the slit)?
image
image
Q4mediummcqPhysicsPhysics
A parallel beam of fast moving electrons is incident normally on a narrow slit. If the speed of electrons is increased:
Q5mediummcqPhysicsPhysics
A beam of light of from a distant source falls on a single slit wide and the resulting diffraction pattern is observed on a screen away. The distance between first dark fringes on either side of the central bright fringe is:
Q6mediummcqPhysicsPhysics
At the first minimum adjacent to the central maximum of a single-slit diffraction pattern, the phase difference between the Huygen's wavelet from the edge of the slit and the wavelet from the midpoint of the slit is:
Q7mediummcqPhysicsPhysics
In a diffraction pattern due to a single slit of width , the first minimum is observed at an angle when light of wavelength is incident on the slit. The first secondary maximum is observed at an angle of:
Q8hardmcqPhysicsPhysics
A linear aperture whose width is is placed immediately in front of a lens of focal length . The aperture is illuminated normally by a parallel beam of wavelength . The distance of the first dark band of the diffraction pattern from the centre of the screen is:

Frequently Asked Questions

How many Diffraction questions are on ExamTest.live?โ–ผ
We have 8 Diffraction questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Diffraction MCQs free?โ–ผ
Yes. All Diffraction questions, answers, and explanations on ExamTest.live are completely free. No account or subscription required.
Which exams include Diffraction questions?โ–ผ
Diffraction questions are commonly asked in Physics, PHYSICS. You can filter by exam using the links above.
How do I practice Diffraction questions effectively?โ–ผ
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.