FIGURE Q33.3 is the interference pattern seen on a viewing screen behind 2 slits. Suppose the 2 slits were replaced by 20 slits having the same spacing d between adjacent slits.

a. Would the number of fringes on the screen increase, decrease, or stay the same?b. Would the fringe spacing increase, decrease, or stay the same?c. Would the width of each fringe increase, decrease, or stay the same?d. Would the brightness of each fringe increase, decrease, or stay the same?

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А в с DE FIGURE Q33.3