Superposition of Waves
Physics ⇒ Waves and Sound
Superposition of Waves starts at 10 and continues till grade 12.
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See sample questions for grade 12
A string fixed at both ends vibrates in its second harmonic. How many nodes and antinodes are present?
Describe the difference between constructive and destructive interference.
Describe what happens when two waves of different frequencies and amplitudes superpose.
Explain why beats are heard when two tuning forks of slightly different frequencies are sounded together.
Which of the following best describes destructive interference? (1) The amplitudes add up (2) The amplitudes subtract (3) The frequencies change (4) The speed increases
Which of the following is a necessary condition for the formation of stationary waves? (1) Two waves of different frequencies (2) Two waves of equal amplitude and frequency traveling in opposite directions (3) Two waves of different amplitudes (4) Two waves traveling in the same direction
Which of the following is an example of the superposition of waves in daily life? (1) Echo (2) Beats (3) Refraction (4) Doppler effect
Which of the following is NOT a characteristic of stationary waves? (1) Nodes and antinodes are formed (2) Energy is transferred along the medium (3) The wave appears to be standing still (4) Formed by superposition of two identical waves traveling in opposite directions
Fill in the blank: The mathematical expression for the resultant displacement y at a point due to two waves y₁ and y₂ is y = __________.
Fill in the blank: The number of beats heard per second is equal to the __________ of the two frequencies.
Fill in the blank: The phenomenon of two waves adding together to produce a wave of greater, lower, or the same amplitude is called __________.
Fill in the blank: The points of maximum amplitude in a stationary wave are called __________.
True or False: In a stationary wave, energy is transmitted from one place to another.
True or False: The superposition of two waves can result in a wave of lower amplitude than either of the original waves.
True or False: The superposition principle applies only to linear systems.
True or False: The superposition principle can be applied to electromagnetic waves as well as sound waves.
