Two sources are said to be coherent if they produce waves

Question

Two sources are said to be coherent if they produce waves (A) of equal wavelength (B) of equal speed (C) having same shape of wave front (D) having a constant phase difference

Tardigrade Admin · Accepted Answer

Phase difference =(2 π/λ) × (path difference) The phase difference is independent of time and depends only on the path difference (x2-x1) This holds only if the two sources are 'coherent', ie, they have a constant fixed phase difference between them.

Q. Two sources are said to be coherent if they produce waves

of equal wavelength

of equal speed

having same shape of wave front

having a constant phase difference

Phase difference $= \frac{2 π}{λ} \times$ (path difference)
The phase difference is independent of time and depends only on the path difference $(x_{2} - x_{1})$ This holds only if the two sources are 'coherent', ie, they have a constant fixed phase difference between them.

Q. Two sources are said to be coherent if they produce waves

of equal wavelength

of equal speed

having same shape of wave front

having a constant phase difference

Phase difference =λ2π​× (path difference) The phase difference is independent of time and depends only on the path difference (x2​−x1​) This holds only if the two sources are 'coherent', ie, they have a constant fixed phase difference between them.

Phase difference $= \frac{2 π}{λ} \times$ (path difference)
The phase difference is independent of time and depends only on the path difference $(x_{2} - x_{1})$ This holds only if the two sources are 'coherent', ie, they have a constant fixed phase difference between them.