PhysicsAdvancedHigh School (11–12)Waves & Sound › Oscillations and Simple Harmonic MotionJEE Advanced
Created by StemPy LabA pendulum swings in air, which slows it with a force proportional to its speed. Its amplitude falls from to in oscillations. Counting from the start, after about how many oscillations is its energy one tenth of its first value?
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← A narrow glass tube, with the same cross-section everywhere, is bent into a V whose arms slope at 30° and at 45° to the horizontal (see the figure). Liquid fills 0.60 m of its length, along its axis. The liquid is displaced slightly and released, and it rocks to and fro. Neglect viscosity and the short bend at the bottom, with g = 10 m/s². Find the period.A particle moves in a plane with x = (3.0 cm) cosω t and y = (4.0 cm) cos(ω t + π/2), with the x axis to the right and the y axis upwards. Which of the following statements are correct? →
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