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35. The position of a particle is given by

The position of a particle is given by : r = (^i+2^j-^k) and momentum p =(3^i+4^j-2^k)  . The angular momentum is perpendicular to

(a)  X-axis

(b)  Y-axis

(c)   Z-axis

(d)  Line at equal angles to all the three axes

Ans. a

(166)

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