एक प्रारूपिक आवृतबीजी परागकोष लघुबीजाणुधानियो की संख्या होती है

एक प्रारूपिक आवृतबीजी परा�

1.	एक प्रारूपिक आवृतबीजी परागकोष लघुबीजाणुधानियो की संख्या होती है
Answer» 1 2 3 4 Answer :D

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A wire is bent to form a semicircle of the radius a. The wire rotates about its one end with angular velocity omega . Axis of rotation is perpendicular to the plane of the semicircle . In the space , a uniform magnetic field of induction B exists along the aixs of rotation as shown in the figure . Then -
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एक प्रारूपिक आवृतबीजी परागकोष लघुबीजाणुधानियो की संख्या होती है

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