Two parallel beams of light of wavelength \( \lambda \) inclined to each other at angle \( \thet...

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Two parallel beams of light of wavelength \( \lambda \) inclined to each other at angle \( \theta(1) \) are incident on a plane at near normal incidence. The fringe width will be
(a) \( \frac{\lambda}{2 \theta} \)
(b) \( \frac{2 \lambda}{\theta} \)
(c) \( \frac{\lambda}{\theta} \)
(d) \( 2 \lambda \sin \theta \)
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