Question

16.
I,
roa
In YDSE, intensity of light from two slits is
proportional to their width, and also to the square of
amplitudes of light from the slits, i.e.,
11_0 a
32
At points, where crest of one wave falls on crest of the
other and through falls on trough, intensity of light is
maximum. Interference is said to be constructive. At
points, where crest of one wave falls on trough of the
other, resultant intensity of light is minimum. The
interference is said to be destructive.
I
(a + b)2
I min
(a - b)2
For sustained interference, the two sources must be
coherent. Two independent sources cannot be coherent​

Answer 1

Answer:

So all of them lie on the x axis . ( -4,0) and ( -8,0) have negative coordinates and hence lie on the negative x-axis . ( 2 ,0) and ( 6,0) have positive coordinates and hence lie on the positive x-axis .