In spherical polar coordinates (l, q, a), q denotes the polar angle ar – McqOptions

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1.	In spherical polar coordinates (l, q, a), q denotes the polar angle around z-axis and a denotes the azimuthal angle raised from x-axis . Then the y-component of P is given by
A.	sinq sina
B.	sinq cosa
C.	cosq sina
D.	cosq cosa
Answer» B. sinq cosa

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