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Waves Questions and Answers | Waves Multiple Choice Questions and Answers

Questions
1 A wave pulse travels a long a thick part of a horizontal cord and reaches another part of the cord which is much thinner and lighter. Which of the following is true about the reflected and transmitted pulse by the boundary in the cord?

MCQ on Waves

MCQ on Waves

A Upright Upright
B Upright Inverted
C Upright Inverted
D Inverted Upright

Answer:Upright Upright
2 Two wave pulses with equal positive amplitudes travel on a cord approaching each other. What is the result of the oscillations when the pulses reach the same point?

MCQ on Waves

A It is constructive interference with twice the amplitude
B It is destructive interference with zero amplitude
C It is constructive interference with slightly greater amplitude
D It is constructive interference with the negative amplitude

Answer:It is constructive interference with twice the amplitude
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3 Two wave pulses one with a positive amplitude the other with equal negative amplitude travel on a cord approaching each other. What is the result of the oscillations when the pulses reach the same point?
A It is constructive interference with twice the amplitude
B It is destructive interference with zero amplitude
C It is constructive interference with slightly greater amplitude
D It is constructive interference with the negative amplitude

Answer:It is destructive interference with zero amplitude
4 What is the amplitude of oscillations?

MCQ on Waves

A 0.5 cm
B 1 cm
C 2 cm
D 5 cm

Answer:2 cm
5 What is the wavelength of the wave?

MCQ on Waves

A 0.5 cm
B 1 cm
C 2 cm
D 20 cm

Answer:20 cm
6 What is the amplitude of oscillations?

MCQ on Waves

A 1 cm
B 2 cm
C 4 cm
D 6 cm

Answer:4 cm
7 What is the wavelength of the wave?

MCQ on Waves

A 1 cm
B 2 cm
C 4 cm
D 6 cm

Answer:2 cm
8 A stretched string of length L = 2 m resonates in two loops. What is the wavelength of the wave?

MCQ on Waves

A 1 m
B 2 m
C 3 m
D 4 m

Answer:2 m
9 A stretched string of length L = 6 m resonates in three loops. What is the wavelength of the wave?

MCQ on Waves

A 1 m
B 2 m
C 3 m
D 4 m

Answer:The wave speed increases with increasing tension T
10 A guitar string resonates at a frequency of 500 Hz forming a standing wave pattern with 5 loops. What is the fundamental frequency?
A 100 Hz
B 200 Hz
C 300 Hz
D 400 Hz

Answer:100 Hz

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