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Wave Optics question

2017 · Shift 2 · Q38

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JEE Advanced
Physics
Wave Optics
2017 · Shift 2 · Q38

Wave Optics question

2017 · Shift 2 · Q38

JEE AdvancedPhysicsWave OpticsMultiple correct+4 / −1

Two coherent monochromatic point sources

{S_1}

and

{S_2}

of wavelength

\lambda = 600\,nm

are placed symmetrically on either side of the center of the circle as shown. The sources are separated by a distance

d=1.8mm.

This arrangement produces interference fringes visible as alternate bright and dark spots on the circumference of the circle. The angular separation between two consecutive bright spots is

\Delta \theta .

Which of the following options is/are correct? JEE Advanced 2017 Paper 2 Offline Physics - Wave Optics Question 19 English

JEE Advanced 2017 Paper 2 Offline Physics - Wave Optics Question 19 English

A
The angular separation between two consecutive bright spots decreases as we move from P1 to P2 along the first quadrant.
B
At P2 the order of the fringe will be maximum.
C
A dark spot will be formed at the point P2.
D
The total number of fringes produced between P1 and P2 in the first quadrant is close to 3000.

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