Fractional band width is defined as this ratio, which I can also write as equal to delta theta upon pi by 2 and that is equal to twice of pi by 2 minus theta M upon pi by 2. Which comes out as 2 minus 4 theta M upon pi.
अंशतः बँडरुंदी ची व्याख्या हे गुणोत्तर,delta f/fo अशी करण्यात आली आहे, जी मी delta theta/ pi/2= 2/ pi/2 आहे. जे 2- , म्हणून समोर येते.