In the given figure,
P and
Q are two equally intense coherent sources, which are emitting radiations of wavelength
20m. The separation between
P and
Q is
5.0 meter and phase of
P is ahead of the phase of
Q by
900.
A,B,C are three distant points of observation, equidistant from the midpoint of
PQ. The intensity of radiation at
A,B and
C will be in the ratio of:
![154990.png](https://search-static.byjusweb.com/question-images/toppr_ext/questions/154990.png)