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23 Cards in this Set
- Front
- Back
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effect of width on single slit diffraction pattern.
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affects the width of the central maximum inversely. b> s<.
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theta = lamda/b
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theta is the angular position of the first minimum. it must be in radians.
lambda is the wavelength and b is the slit width. (angular width of the central maximum is 2theta) |
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Double slit interference with wide slits
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modulated by one slit pattern - reduces/removes some maxima.
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ny = dsinTheta
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formula for constructive interference from 2(o more) slits diffraction grating.
d is slit width. theta is angular positioning on screan, rad or degrees. n,= 1,2,3... ; n = 0 is central maximum y is wavelength. |
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Doppler effect
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change in frequency due to relative motion between source and observer.
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Doppler effect - direction of relative motion
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Towards- frequency increases.
Away- frequency decreases. |
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Doppler effect with reflection.
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two frequency shifts! first reflecting object acts as a moving observer, then moving source.
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moving source: f' = f(v/v+-Us)
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Doppler effect sound
f' is observed frequency f is source frequency v is wave speed Us is source speed. |
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intensity
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principle of superposition
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plane polarized light
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polarizing filter. also called a polarizer or analyzer
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polarization by reflection
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Brewster's angle
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path difference
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phase difference
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