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`        Two  coherent sources S1 and S2 are placed along the diameter of a circle  symmetrically about the center at a distance x from each other(x=  5y,y=wavelength of light).Find the no. of points on the circle having  maxima.`
6 years ago

SAGAR SINGH - IIT DELHI
879 Points
```										Dear student,
A simple harmonic motion is a vibratory motion in a line between two  points. The speed at both the end points is 0, and maximum at the  center. The motion is driven by an elastic restoring force proportional  to the distance from the center. Acceleration being proportional to the  force, hence it is always proportional to the distance from the center  also and always is in the negative direction of the motion, as the force  is a restoring force, always trying to draw the particle under motion  to the center or the equilibrium position. If a particle undergoes a  motion of uniform speed along a circle, its projection on a particular  diameter undergoes a simple harmonic motion. Suppose the radius vector  of the  particle on the circle  makes an angle theta = wt with a fixed  radius and if the radius is of length A, ( the diameter being 2A) and if  the fixed radius vector makes an angle Φ with fixed diameter, the  radius vector of any point on the circle makes an angle wt + Φ with the  fixed diameter and Acos(wt + Φ) is the projection of the revolving  radius vector on the fixed diameter.

All the best.
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Sagar Singh
B.Tech, IIT Delhi

```
6 years ago
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