Question

What type of vibration is executed in each of the following cases

1) A ‘swing’ given a push and then let go.

2) A tuning fork of frequency made to vibrate by another tuning fork also of frequency

• A. 1) Resonance, 2) Free Vibration
• B. 1) Forces Vibration, 2) Free Vibration
• C. 1) Resonance, 2) Forced Vibration
• D. 1) Free Vibration, 2) Resonance

Answer 1

The correct option is D

1) Free Vibration, 2) Resonance

i) Free vibration: Disturbance of an object gives rise to free or natural vibrations.

ii) Resonance: Periodic force with the same frequency is applied