Oscillations and Waves MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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The number of waves passing a point per second is referred to as:
A. Frequency
B. Wavelength
C. Amplitude
D. Period
Answer: Frequency
The phenomenon in which the amplitude of a wave increases due to matching frequencies is called:
A. Resonance
B. Interference
C. Diffraction
D. Refraction
Answer: Resonance
The time taken for a wave to travel one wavelength is called the:
A. Period
B. Frequency
C. Wavelength
D. Amplitude
Answer: Period
The frequency at which an object vibrates naturally is called its:
A. Resonant frequency
B. Fundamental frequency
C. Overtone frequency
D. Harmonic frequency
Answer: Resonant frequency
In which type of wave does the displacement of the medium is parallel to the direction of wave travel?
A. Transverse wave
B. Longitudinal wave
C. Surface wave
D. Mechanical wave
Answer: Longitudinal wave
What is the speed of sound in air at room temperature (20°C)?
A. 343 m/s
B. 300 m/s
C. 1500 m/s
D. 500 m/s
Answer: 343 m/s
The phenomenon where waves bend around obstacles or pass through small openings is called:
A. Refraction
B. Reflection
C. Diffraction
D. Interference
Answer: Diffraction
The speed of a wave is given by the formula:
A. Speed = Wavelength × Frequency
B. Speed = Frequency / Wavelength
C. Speed = Wavelength / Frequency
D. Speed = Amplitude × Frequency
Answer: Speed = Wavelength × Frequency
The point of zero displacement in a standing wave is called a:
A. Node
B. Antinode
C. Crest
D. Trough
Answer: Node