Physics · Wave Optics
Light of wavelength λ is incident on a slit of width d. The resulting diffraction pattern is observed on a screen at a distance D. The linear width of the principal maximum is equal to the width of the slit if D equals:
- 12λ2d
- 22λd
- 3d22λ✓
- 4dλ
Correct answer
d22λ
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