The process of emission of electrons from hot metal surface is called MCQ with Answer and Explanation
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A pendulum has time period 2 s. If its length is increased by 4 times, new period is
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The SI unit of momentum is
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Diffraction limits resolution because:
Correct Answer: Option B
Explanation:
Diffraction spreads light through apertures, creating Airy patterns instead of points. Fundamental limit: θ_min ≈ 1.22λ/D (Rayleigh criterion). Memory tip: 'Diffraction limit: smaller λ or larger aperture ⇒ better resolution'. Wave optics concept frequently tested in competitive exams.
Diffraction spreads light through apertures, creating Airy patterns instead of points. Fundamental limit: θ_min ≈ 1.22λ/D (Rayleigh criterion). Memory tip: 'Diffraction limit: smaller λ or larger aperture ⇒ better resolution'. Wave optics concept frequently tested in competitive exams.
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