Published by:
CGP EDU Academic Team
Published on: August 14, 2026
A smooth inclined plane having angle of inclination 30° with horizontal has a mass 2.5 kg held by a spring which is fixed at the upper end as shown in figure. If the mass is taken 2.5 cm up along the surface of the inclined plane, the tension in the spring reduces to zero. If the mass is then released, the angular frequency of oscillation in radian per second is
Text Solution
Verified by ExpertsThe correct answer is:
D
kx = mg sin 30º
ꞷ = 
= 
= 
= 14.14
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