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प्रश्न
Obtain the relation between phase difference and path difference.
उत्तर
- Phase difference (Φ):
It is the difference expressed in degrees or radians between two waves having same frequency and referenced to same point in time. - Path difference (δ):
It is the difference between the lengths of two paths of the two different having same frequency and travelling at same velocity.
δ = `lambda/(2pi) Φ`
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संबंधित प्रश्न
Write the important characteristic features by which the interference can be distinguished from the observed diffraction pattern.
Write the necessary conditions to obtain sustained interference fringes.
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(i) \[y = a_1 \sin \omega t\]
(ii) \[y = a_2 \sin \left( \omega t + \epsilon \right)\]
(iii) \[y = a_1 \sin 2\omega t\]
(iv) \[y = a_2 \sin 2\left( \omega t + \epsilon \right).\]
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(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iv)
(d) (iii) and (iv)
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