MEDIUM
Earn 100

Describe briefly the types of oscillations:

Important Questions on Oscillations

MEDIUM
How you can demonstrate different types of oscillations?
EASY
What is meant by maintained oscillation? Give an example.
HARD

The suspension system of a 2400 kg automobile sags 10 cm when the chassis is placed on it. Also, the oscillation amplitude decreases by 50% per cycle. Estimate the values of,

(a) the spring constant k, and

(b) the damping constant b for the spring and shock absorber system of one wheel, assuming each wheel supports 600 kg.

EASY

Explain the maintained oscillations? Give an example.

 

HARD

The amplitude of a damped oscillator decreases to 0.9 times its original magnitude in 5 s. In another 10 s it will decrease to α- times its original magnitude, where α equals:

MEDIUM
Differentiate between damped and undamped oscillations
MEDIUM
The equation  d 2 y dt 2 + bdy dt + ω 2 y = 0  represents the equation of motion for a
EASY
Explain damped oscillation. Give an example.
HARD
A damped oscillator consists of a spring-mass system with mass 2 kg and spring of spring constant 10 N m-1. The damping force is given by F=-bdxdt where b=280 g s-1. The time required for the amplitude of the oscillations to reduce to one-fourth 14th of its initial value is: (Assume ln2=0.7)
EASY
Explain why simple motion of pendulum stop after some time?
HARD
If a simple pendulum has significant amplitude (up to a factor of 1e of original) only in the period between t=0 to t=τ, then τ may be called the average life of the pendulum. When the spherical bob of the pendulum suffers a retardation (due to viscous drag) proportional to its velocity, with b as the constant proportionality, the average lifetime of the pendulum in (assuming damping is small) in seconds:
MEDIUM

In which  case the amplitude of oscillations becomes too large?

MEDIUM
What are damped vibrations? Draw the displacement-time graph for damped and undamped vibrations.
HARD
Explain in detail the four different types of oscillations.
MEDIUM
The amplitude of damped oscillator becomes 13rd of the original in 2 s. Its amplitude after 6 s is 1n times the original. Then, n is equal to,
MEDIUM
A simple pendulum after some time becomes slow in motion and finally stops due to
EASY
Compare the effect of damping on the resonance vibration of sonometer and of the air column.
EASY
Name different types of oscillations.