---

Question 1:

What is a standing wave?

A) A wave that travels through a medium
B) A wave that does not move and stays in one place
C) A wave that changes direction as it passes through different mediums
D) A wave that reflects off a boundary

Show Answer

Explanation: The correct answer is B) A wave that does not move and stays in one place. A standing wave is formed when two waves of the same frequency and amplitude traveling in opposite directions interfere with each other. The resulting wave appears to be stationary and exhibits distinct regions of constructive and destructive interference.

---

Question 2:

What is resonance?

A) The bending of waves around obstacles or through openings
B) The change in direction of waves as they pass through different mediums
C) The bouncing back of waves when they encounter a boundary
D) The phenomenon when a vibrating system is driven at its natural frequency

Show Answer

Explanation: The correct answer is D) The phenomenon when a vibrating system is driven at its natural frequency. Resonance occurs when an external force or vibration is applied to a system at its natural frequency. This results in a significant increase in amplitude or energy transfer to the system, leading to the reinforcement of vibrations and the generation of standing waves.

---

Question 3:

What are nodes in a standing wave?

A) Points of maximum displacement in the wave
B) Points of minimum displacement in the wave
C) Points of constructive interference
D) Points of destructive interference

Show Answer

Explanation: The correct answer is B) Points of minimum displacement in the wave. Nodes are locations in a standing wave where the displacement of the medium is at a minimum. At these points, the two interfering waves in the standing wave undergo destructive interference, resulting in a cancellation of amplitudes.

---

Question 4:

What are antinodes in a standing wave?

A) Points of maximum displacement in the wave
B) Points of minimum displacement in the wave
C) Points of constructive interference
D) Points of destructive interference

Show Answer

Explanation: The correct answer is A) Points of maximum displacement in the wave. Antinodes are locations in a standing wave where the displacement of the medium is at a maximum. At these points, the two interfering waves in the standing wave undergo constructive interference, resulting in an amplification of amplitudes.

---

Question 5:

What is the fundamental frequency of a standing wave?

A) The highest frequency present in the standing wave
B) The lowest frequency present in the standing wave
C) The frequency at which the standing wave is driven
D) The first harmonic frequency of the standing wave

Show Answer

Explanation: The correct answer is D) The first harmonic frequency of the standing wave. The fundamental frequency of a standing wave is the lowest frequency at which the standing wave can form. It corresponds to the first harmonic of the standing wave and is determined by the length, tension, and properties of the medium in which the wave propagates.