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JEE PHYSICS MCQ: WAVE OPTICS

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Application +4 | -1

In YDSE setup, light of wavelength

640 \mathrm{~nm}

is used with

d=0.8 \mathrm{~mm}

and

D=1 \mathrm{~m}

. If intensity at central maxima is

I_0

and it's position is

y=0

View answer and explanation

Correct option: A

Intensity at

y=0.4 \mathrm{~mm}

is zero

Intensity at

y=0.4 \mathrm{~mm}

is zero because at this point, the phase difference corresponds to destructive interference.

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