Which must be true of a beam of coherent light? It may be polychromatic, waves o

Question

Which must be true of a beam of coherent light?

It may be polychromatic, waves of different frequencies must be in phase with each other, it can be produced by filtering sunlight

It may be polychromatic, waves of different frequencies may be out of phase to each other, it can be produced by lasers

It must be polychromatic, it can be produced by lasers

It must be polychromatic, it can be produced by filtering sunlight

It may be polychromatic, waves of different frequencies may be out of phase to each other, it can be produced by filtering sunlight

A double slit is illuminated by monochromatic light. If the central bar is removed, which of the following is true?

the central maximum gets grows dimmer and wider, the other maxima move toward the central maximum and grow dimmer

the central maximum gets grows brighter and wider, the other maxima move toward the central maximum and grow dimmer

the central maximum gets grows dimmer and narrower, the other maxima move toward the central maximum and grow dimmer

the central maximum gets grows dimmer and wider, the other maxima move toward the central maximum and grow brighter

the central maximum gets grows dimmer and narrower, the other maxima move away from the central maximum and grow brighter

the central maximum gets grows brighter and narrower, the other maxima move toward the central maximum and grow dimmer

the central maximum gets grows brighter and narrower, the other maxima move toward the central maximum and grow brighter

the central maximum gets grows dimmer and wider, the other maxima move away from the central maximum and grow dimmer

the central maximum gets grows brighter and wider, the other maxima move away from the central maximum and grow dimmer

the central maximum gets grows dimmer and narrower, the other maxima move away from the central maximum and grow dimmer

the central maximum gets grows brighter and narrower, the other maxima move away from the central maximum and grow brighter

the central maximum gets grows dimmer and wider, the other maxima move away from the central maximum and grow brighter

the central maximum gets grows brighter and narrower, the other maxima move away from the central maximum and grow dimmer

the central maximum gets grows dimmer and narrower, the other maxima move toward the central maximum and grow brighter

the central maximum gets grows brighter and wider, the other maxima move away from the central maximum and grow brighter

Explanation / Answer

It must be polychromatic, it can be produced by lasers

the central maximum gets grows brighter and wider, the other maxima move away from the central maximum and grow brighter

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