HardPhysics
+4 / -1
-- 38. A particle of mass m moves in a circular orbit under a central force field for which the potential energy is given by U = ar^2, where a is a positive constant and r denotes the radius. Assuming Bohr's quantisation condition for angular momentum to be valid, the speed of the particle electron in the nth allowed orbit will be
A
(nh/2π * √(2a/m³))^1/2
B
(nh/2π * √(a/m³))^1/2
C
(nh/2π * √(a/m))^1/2
D
(nh/2π * √(a/2m))^1/2
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