asin30=λ
asinθ=23λ
sin30sinθ=23
sinθ=23×21
sinθ=43
θ=sin(43)
In a diffraction pattern due to a single slit of width a the first minimum is observed at an angle 30^o when light of wavelength 5000 Å is incident…
NEET UG 2016 — Physics Optics
2016mcqmedium
In a diffraction pattern due to a single slit of width a the first minimum is observed at an angle 30o when light of wavelength 5000Å is incident on the slit. The first secondary maximum is observed at an angle of:
Official previous-year question
Held on 30 Apr 2016 · Verified 9 Jul 2026.
Options
- A
sin−1(41)
- B
sin−1(32)
- C
sin−1(21)
- D
sin−1(43)
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