Oscillations and Waves MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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The maximum displacement of a wave from its equilibrium position is called the:
A. Amplitude
B. Frequency
C. Wavelength
D. Period
Answer: Amplitude
The property of a wave that is responsible for its color is related to its:
A. Wavelength
B. Frequency
C. Amplitude
D. Speed
Answer: Wavelength
The phenomenon where the frequency of a wave changes due to relative motion between the source and observer is called:
A. Doppler effect
B. Interference
C. Refraction
D. Diffraction
Answer: Doppler effect
When a wave passes from air into water, its speed:
A. Decreases
B. Increases
C. Remains the same
D. Becomes zero
Answer: Decreases
The principle stating that the resultant wave is the sum of the individual waves when they overlap is called:
A. Superposition principle
B. Refraction principle
C. Diffraction principle
D. Reflection principle
Answer: Superposition principle
The bending of waves around obstacles or through openings is called:
A. Diffraction
B. Refraction
C. Reflection
D. Interference
Answer: Diffraction
The phenomenon where a wave changes direction after striking a surface is called:
A. Reflection
B. Refraction
C. Diffraction
D. Interference
Answer: Reflection
The interaction of waves in a medium that causes a change in the amplitude of the waves is called:
A. Interference
B. Refraction
C. Diffraction
D. Reflection
Answer: Interference
The point where two waves meet and create a wave with maximum amplitude is called a:
A. Antinode
B. Node
C. Crest
D. Trough
Answer: Antinode