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Class 11 Physics Practice Test: Oscillations - Damped Simple Harmonic Motion
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Avg score: 77% Most missed: “Consider the damped SHM of a spring mass system. If the time taken for the ampli…”

When the motion of an oscillator reduces due to an external force, the oscillator and its motion are damped. These periodic motions of gradually decreasing amplitude are damped simple harmonic motion.

Class 11 Physics Practice Test: Oscillations - Damped Simple Harmonic Motion
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4 Questions

1. Consider the damped SHM of a spring mass system. If the time taken for the amplitude to become half is ‘T’, what is the time taken for mechanical energy to become half?
2. What happens to the energy of a particle, in SHM, with time in the presence of damping forces?
3. If the restoring force on a body is given by: F = -kx -bv, then what is the expression for amplitude of motion? Let A be amplitude without damping forces
4. Damping force on a spring mass system is proportional to which of the following quantities?