Oscillations & SHM – Objective Questions (Page 3)
Q21.
Damping causes:
- A) Increase in amplitude
- B) Decrease in energy
- C) Constant energy
- D) Increase in frequency
Answer: B
Q22.
In forced oscillations, frequency depends on:
- A) Natural frequency
- B) Amplitude
- C) Driving frequency
- D) Damping only
Answer: C
Q23.
Resonance occurs when:
- A) Driving frequency is zero
- B) Natural frequency is zero
- C) Driving frequency equals natural frequency
- D) Amplitude is zero
Answer: C
Q24.
Quality factor (Q) is a measure of:
- A) Energy loss
- B) Sharpness of resonance
- C) Time period
- D) Frequency
Answer: B
Q25.
Critical damping is used in:
- A) Pendulum clocks
- B) Radio receivers
- C) Shock absorbers
- D) Springs
Answer: C
Q26.
At resonance, amplitude becomes:
- A) Zero
- B) Minimum
- C) Maximum
- D) Constant
Answer: C
Q27.
In damped oscillations, time period:
- A) Decreases
- B) Increases slightly
- C) Becomes zero
- D) Remains same always
Answer: B
Q28.
If damping increases, resonance curve becomes:
- A) Sharper
- B) Narrower
- C) Broader
- D) Higher
Answer: C
Q29.
Which quantity decides the stability of oscillations?
- A) Mass
- B) Force constant
- C) Damping
- D) Displacement
Answer: C
Q30.
Most common IIT trap in SHM is:
- A) Wrong unit
- B) Ignoring restoring direction
- C) Using amplitude wrongly
- D) Forgetting time
Answer: B
Objective Section (3 Pages) Completed Successfully ✅
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