laser beam is characterized by
A) low spectral width
B) high power but low intensity
C) rays of light which focus on a point without a convex lens
D) low wavelength
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(a) Monochromatic light passed through a small circular aperture produces this diffraction pattern. (b) Two point light sources that are close to one another ...
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C) rays of light which focus on a point without a convex lens
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C) rays of light which focus on a point without a convex lens
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