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PhysicsJEE Main 24 Jan 2026, Shift 1·Q3·MCQ·Easy–moderate

Oscillations · Oscillating systems

A cylindrical block of mass MM and area of cross section AA is floating in a liquid of density ρ\rho and with its axis vertical. When depressed a little and released the block starts oscillating. The period of oscillation is .
  1. (1)2πMρAg2\pi\sqrt{\dfrac{M}{\rho A g}}
  2. (2)π2MρAg\pi\sqrt{\dfrac{2M}{\rho A g}}
  3. (3)πρAMg\pi\sqrt{\dfrac{\rho A}{M g}}
  4. (4)2πρAMg2\pi\sqrt{\dfrac{\rho A}{M g}}

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