Diffraction of Light
Physics ⇒ Light and Optics
Diffraction of Light starts at 11 and continues till grade 12.
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See sample questions for grade 11
A diffraction grating has 5000 lines per cm. What is the grating spacing?
A diffraction grating produces a maximum at an angle of 30° for light of wavelength 600 nm. If the grating spacing is 1.2 x 10-6 m, what is the order of the maximum?
A laser beam of wavelength 500 nm passes through a slit of width 0.1 mm. Calculate the angular position of the second minimum.
A monochromatic light of wavelength 650 nm is used in a single slit experiment with slit width 0.5 mm. Find the angular width of the central maximum.
A slit of width 0.25 mm is illuminated by light of wavelength 500 nm. Calculate the number of minima observed within ±90°.
A slit of width 0.3 mm is illuminated by light of wavelength 600 nm. What is the angular separation between the first and second minima?
Calculate the angle at which the first minimum occurs in a single slit diffraction pattern if the slit width is 0.2 mm and the wavelength of light is 600 nm.
Describe the difference between Fraunhofer and Fresnel diffraction.
Describe the difference between interference and diffraction.
Describe the effect of using white light instead of monochromatic light in a single slit diffraction experiment.
Explain why a telescope with a larger aperture can resolve finer details.
Explain why diffraction effects are not significant in daily life for visible light.
Explain why sound waves can bend around corners more easily than light waves.
Explain why the central maximum in a single slit diffraction pattern is brighter than the secondary maxima.
If the distance between the slit and the screen is doubled in a single slit diffraction experiment, what happens to the width of the central maximum?
If the wavelength of light is doubled, what happens to the angular width of the central maximum in a single slit diffraction pattern?
If the width of a single slit is decreased, what happens to the width of the central maximum in the diffraction pattern?
In a double slit experiment, if the slit width is reduced, what happens to the diffraction envelope?
State the condition for the first minimum in a single slit diffraction pattern.
The phenomenon of diffraction demonstrates which property of light?
