Diffraction of Light
Physics ⇒ Light and Optics
Diffraction of Light starts at 11 and continues till grade 12.
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A diffraction grating is used to separate white light into its component colors. Explain why this occurs.
Describe the difference between Fresnel and Fraunhofer diffraction.
Describe the effect of using monochromatic versus white light in a single-slit diffraction experiment.
Explain why diffraction is not easily observed with everyday objects and visible light.
Explain why radio waves can bend around buildings while visible light cannot.
Explain why the central maximum in a single-slit diffraction pattern is brighter and wider than the other maxima.
If the width of a single slit is halved, what happens to the width of the central maximum in the diffraction pattern?
In a single-slit diffraction experiment, if the wavelength of light is increased, what happens to the width of the central maximum?
State the condition for the first minimum in a single-slit diffraction pattern.
The phenomenon of diffraction demonstrates which property of light? (1) Particle nature (2) Wave nature (3) Both (4) Neither
The resolving power of an optical instrument is limited by which phenomenon? (1) Reflection (2) Refraction (3) Diffraction (4) Polarization
Which of the following best describes the intensity distribution in a single-slit diffraction pattern? (1) Uniform (2) Central maximum with decreasing side maxima (3) Alternating bright and dark bands of equal width (4) Only one bright spot
Which of the following equations gives the angular position of the m-th minimum in a single-slit diffraction pattern? (1) d sinθ = mλ (2) a sinθ = mλ (3) a sinθ = (m+1/2)λ (4) d sinθ = (m+1/2)λ
Fill in the blank: In Fraunhofer diffraction, both the source and the screen are effectively at ______.
Fill in the blank: The Rayleigh criterion for resolution states that two point sources are just resolved when the central maximum of one coincides with the ______ of the other.
The central maximum in a single-slit diffraction pattern is ______ times as wide as the other maxima.
Diffraction can only occur with light waves. True or False?
In a double-slit experiment, the observed pattern is a combination of interference and diffraction. True or False?
True or False: Diffraction effects are more pronounced when the size of the obstacle or aperture is comparable to the wavelength of light.
True or False: The number of observable diffraction fringes increases as the slit width decreases.
