Q27.In a double slit experiment with monochromatic light, fringes are obtained on a screen placed at some distance from the plane of slits. If the screen is moved by 5 × 10−2 m towards the slits, the change in fringe width is 3 × 10−3 cm . If the distance between the slits is 1 mm , then the wavelength of the light will be____ nm .
What This Question Tests
The problem requires calculating the wavelength of light by using the given change in fringe width when the screen distance is altered in a Young's Double Slit Experiment.
Concepts Tested
Formulas Used
β = λD/d
Δβ = λΔD/d
📚 NCERT Sections This Tests
10.4 — In A Young’S Double-Slit Experiment, The Slits Are Separated By
Physics Class 12 · Chapter 10
10.4 In a Young’s double-slit experiment, the slits are separated by 0.28 mm and the screen is placed 1.4 m away. The distance between the central bright fringe and the fourth bright fringe is measured to be 1.2 cm. Determine the wavelength of light used in the experiment.
10.5 — In Young’S Double-Slit Experiment Using Monochromatic Light Of
Physics Class 12 · Chapter 10
10.5 In Young’s double-slit experiment using monochromatic light of wavelength l, the intensity of light at a point on the screen where path difference is l, is K units. What is the intensity of light at a point where path difference is l/3?
10.1 — Monochromatic Light Of Wavelength 589 Nm Is Incident From Air On A
Physics Class 12 · Chapter 10
10.1 Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed of (a) reflected, and (b) refracted light? Refractive index of water is 1.33.
📋 Question Details
- Chapter
- Wave Optics
- Topic
- Young's Double Slit Experiment
- Year
- 2022
- Shift
- 29 Jun Shift 2
- Q Number
- Q27
- Type
- Numerical
- NCERT Ref
- Class 12 Physics Ch 10: Wave Optics
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