A series of bright fringes appears on the viewing screen of a Young%u2019s doubl

Question

A series of bright fringes appears on the viewing screen of a Young%u2019s double-slit experiment. Suppose you move from one bright fringe to the next one farther out from the central bright fringe. Does the difference in path lengths of the light waves increase or decrease, and by what amount does it change? Express your answer in terms of the wavelength %u03BB of the light.

a, b, c, d, or e?

Difference in Path Lengths Amount a. Increases b. Increases %u03BB c. Increases 2%u03BB d. Decreases e. Decreases %u03BB

Explanation / Answer

you move further away so PLD increases

since you move bright to next bright it shifts by one wavelength

so b)

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