Q68.If I0 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? (1) 2I0 (2) 4I0 (3) I0 (4) I0/2
What This Question Tests
This question requires understanding how the intensity of the central maximum in a single-slit diffraction pattern depends on the slit width.
Concepts Tested
Formulas Used
Intensity ∝ (Amplitude)^2
Amplitude ∝ slit width
📚 NCERT Sections This Tests
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?
10.4 — 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.
10.2 — What Is The Shape Of The Wavefront In Each Of The Following Cases:
Physics Class 12 · Chapter 10
10.2 What is the shape of the wavefront in each of the following cases: (a) Light diverging from a point source. (b) Light emerging out of a convex lens when a point source is placed at its focus. (c) The portion of the wavefront of light from a distant star intercepted by the Earth.
📋 Question Details
- Chapter
- Wave Optics
- Topic
- Single slit diffraction
- Year
- 2005
- Shift
- Unknown
- Q Number
- Q68
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 10: Wave Optics
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