NEET UG PHYSICS MCQ: WAVE OPTICS

1 Hard

1 of 1

Application +4 | -1

A beam of light consisting of wavelengths

6000\mathop {\text{A}}\limits^ \circ

and

4500\mathop {\text{A}}\limits^ \circ

is used in a YDSE with D=1m and d=1

{mm}

. Find the least distance from the central maxima, where bright fringes due to the two wavelengths coincide.

View answer and explanation

Correct option: C

1.8 {~mm}

Option C (

1.8 {~mm}

) is correct because it represents the least distance where bright fringes of the two wavelengths coincide, calculated using the condition for constructive interference in YDSE.

NEET UG PHYSICS MCQ: WAVE OPTICS

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