Question

What is maxima and minima in interference?

Answer 1

1. Interference is a process in which two waves combine to generate a new wave with a larger or smaller amplitude.
2. In interference, a maximum is a point when two crests or two troughs of two separate waves collide and reinforce one another.
3. Minima in interference, on the other hand, is a point where a crest and a trough meet and cancel each other out.
4. Consider two waves interfering at a point P.
5. The distance covered by the waves are $AP=X$, and $BP=X+∆x$. $∆x,x$ represents the distance.
6. For maxima $∆x=n\lambda$, where n is an integer, $\lambda$is the wavelength,$∆x$ is the distance.
7. For minima $∆x=\left(n+\frac{1}{2}\right)\lambda$,where n is an integer, $\lambda$is the wavelength,$∆x$ is the distance.