1) The diffraction pattern depends on a) A. Amplitude of light only b) B. Wavelength of light c) C. Speed of light d) D. Intensity only 2) 2. In single-slit diffraction, secondary maxima are: a) A. As bright as central maximum b) B. Brighter than central maximum c) C. Less intense than central maximum d) D. Of equal width as central maximum 3) 3. The width of the central maximum is inversely proportional to: a) A. Wavelength b) B. Slit width c) C. Screen distance d) D. Intensity 4) 4. Diffraction effects are more pronounced for: a) A. X-rays b) B. Ultraviolet light c) C. Visible light d) D. Radio waves 5) 5. The bending of light around the edges of an obstacle is called: a) A. Reflection b) B. Refraction c) C. Interference d) D. Diffraction 6) 6..Diffraction of light is most prominent when: a) A. Size of obstacle ≫ wavelength b) B. Size of obstacle ≪ wavelength c) C. Size of obstacle ≈ wavelength d) D. Size of obstacle is infinite 7) 7.Diffraction shows that light: a) A. Travels in straight lines only b) B. Is a particle c) C. Has wave nature d) D. Has no speed 8) 8. In single-slit diffraction, the central maximum is: a) A. Brightest and widest b) B. Brightest and narrowest c) C. Dark and narrow d) D. Dark and wide 9) 9.The angular width of the central maximum in single-slit diffraction is a) A. λ/a b) B. 2λ/a c) C.λ/2a d) D. a/λ 10) 10.The diffraction pattern becomes broader when: a) A. Slit width is reduced b) B. Slit width is increased c) C. Slit width is same d) D. Slit width is broad

JKC 11 Diffraction Pattern Using A Laser Beam

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