Most Important Selected Qs for JEE AdvancedPhysicsOscillations
Paragraph: Four elastic cords each of force constant K and almost zero relaxed lengths are connected at their one end to a particle P of mass m and the other ends are connected to diametrically opposite points of two perpendicular diameters AC, BD. Mass of the ring is uniformly distributed and is 2 m . In equilibrium the system stays at rest with the particle at the center of the ring O ^2 . O ^ coincides at this ins
Options
- A2 r ₀ 3 t
- B- r₀ 3 t
- Czero
- Dr₀ 3 (1- t)
Correct answer
D. r₀ 3 (1- t)
Step-by-step solution
For keq So Net restoring force along Displace went aligned & =2 k r₀ 37^ 33^ +e^k r₀ 53^ 3^ & =2 k r₀ ( ( 4 3 )^2+ ( 3 5 )^2 ) & =2 k r₀ aligned Reduce mass of system = 2 m m 3 m = 2^m 3 so Time period =2 m 3 k Amplitude of motion of center of ring = r₀ 3 at t=0 centre of ring is at exteome position so x_r= 3 (1- t)