Oscillations and Waves MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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The number of oscillations per unit time is called the wave’s:
A. Frequency
B. Period
C. Wavelength
D. Amplitude
Answer: Frequency
The time required for one complete cycle of a wave is called its:
A. Period
B. Frequency
C. Wavelength
D. Amplitude
Answer: Period
The distance between two successive compressions in a longitudinal wave is equal to the:
A. Wavelength
B. Frequency
C. Amplitude
D. Period
Answer: Wavelength
The relationship between the speed, frequency, and wavelength of a wave is described by the equation:
A. v = fλ
B. v = λ/f
C. v = f/λ
D. v = λ * f
Answer: v = fλ
The phenomenon where the frequency of a wave changes as the source moves relative to the observer is called:
A. Doppler effect
B. Refraction
C. Diffraction
D. Interference
Answer: Doppler effect
The angle of refraction is measured from the:
A. Normal to the surface
B. Surface of incidence
C. Path of the wave
D. Direction of the wave
Answer: Normal to the surface
The bending of waves when they pass through an opening or around an obstacle is known as:
A. Diffraction
B. Refraction
C. Reflection
D. Interference
Answer: Diffraction
The angle of incidence is measured from the:
A. Normal to the surface
B. Surface of incidence
C. Path of the wave
D. Direction of the wave
Answer: Normal to the surface
The phenomenon of waves combining to form a new wave with greater amplitude is called:
A. Constructive interference
B. Destructive interference
C. Diffraction
D. Refraction
Answer: Constructive interference