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Test: Damped & Forced Oscillations

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Test: Damped & Forced Oscillations for NEET 2022 is part of Topic-wise MCQ Tests for NEET preparation. The Test: Damped & Forced Oscillations questions and answers have been prepared according to the NEET exam syllabus.The Test: Damped & Forced Oscillations MCQs are made for NEET 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Damped & Forced Oscillations below.
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Test: Damped & Forced Oscillations - Question 1

The phenomenon of increase in amplitude when the driving force is close to the natural frequency of the oscillator is known as

Detailed Solution for Test: Damped & Forced Oscillations - Question 1

The phenomenon of increase in amplitude when the driving force is close to the natural frequency of the oscillator is known as resonance. By the definition of resonance.

Test: Damped & Forced Oscillations - Question 2

If ω is the natural frequency of the system and ωd is the frequency of the external force that acts on an oscillating system then at resonance

Detailed Solution for Test: Damped & Forced Oscillations - Question 2

When the natural frequency and external frequency of an object are equal the phenomenon is called resonance.

Test: Damped & Forced Oscillations - Question 3

Under what condition angular frequency ω of the damped oscillator would be equivalent to angular velocity Ω of the undamped oscillator.

Detailed Solution for Test: Damped & Forced Oscillations - Question 3

Test: Damped & Forced Oscillations - Question 4

The restoring force in a simple harmonic motion is _________ in magnitude when the particle is instantaneously at rest.

Detailed Solution for Test: Damped & Forced Oscillations - Question 4

The restoring force in a simple harmonic motion is maximum in magnitude when the particle is instantaneously at rest because in SHM object’s tendency is to return to mean position and here particle is instantaneously at rest after that instant restoring force will be max to bring particle to mean position.

Test: Damped & Forced Oscillations - Question 5

Energy is supplied to the damped oscillatory system at the same rate at which it is dissipating energy, then the amplitude of such oscillations would become constant. Such oscillations are called

Detailed Solution for Test: Damped & Forced Oscillations - Question 5

Energy is supplied to the damped oscillatory system at the same rate at which it is dissipating energy, and then the amplitude of such oscillations would become constant. Such oscillations are called maintained oscillations. By the definition of maintained oscillations.

Test: Damped & Forced Oscillations - Question 6

The amplitude of S.H.M at resonance is _______ in the ideal case of zero damping.

Detailed Solution for Test: Damped & Forced Oscillations - Question 6

In an ideal environment where there is no resistance to oscillation motion i.e. damping is zero, when we oscillate a system at its resonant frequency since there is no opposition to oscillation, the amplitude will go on increasing and reach infinity.

Test: Damped & Forced Oscillations - Question 7

What determines the natural frequency of a body?

Detailed Solution for Test: Damped & Forced Oscillations - Question 7

Natural frequency is the frequency at which a body tends to oscillate in the absence of any driving or damping force.
Free vibrations of any elastic body are called natural vibration and happen at a frequency called natural frequency. Natural vibrations are different from forced vibration which happen at frequency of applied force .

Test: Damped & Forced Oscillations - Question 8

If an external force with angular frequency Ï‰d acts on an oscillating system with natural angular frequency Ï‰, the system oscillates with angular frequency Ï‰d. The amplitude of oscillations is the greatest when:

Test: Damped & Forced Oscillations - Question 9

Under forced oscillation, the phase of the harmonic motion of the particle and phase of driving force

Detailed Solution for Test: Damped & Forced Oscillations - Question 9

Harmonic motion is the natural motion of a body(we consider no air friction) under no force where as damped oscillation are under force hence the iscilation are different

Test: Damped & Forced Oscillations - Question 10

In the ideal case of zero damping, the amplitude of simple harmonic motion at resonance is:

Detailed Solution for Test: Damped & Forced Oscillations - Question 10

In an ideal environment where there is no resistance to oscillatory motion, that is, damping is zero, when we oscillate a system at its resonant frequency, since there is no opposition to oscillation, a very large value of amplitude will be recorded. Forced oscillation is when you apply an external oscillating force.

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