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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a node in a standing wave?
💡 Hint: Think about where the string does not move.
Question 2
Easy
What is the formula for the fundamental wavelength on a string fixed at both ends?
💡 Hint: Consider the length of the string.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is a characteristic feature of nodes in a standing wave?
- They have maximum displacement
- They have minimum energy
- They have zero displacement
💡 Hint: Consider where the wave is not moving.
Question 2
True or False: Antinodes are found at fixed ends of a string.
- True
- False
💡 Hint: Think about what happens to the wave at the ends.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A string fixed at both ends has a length of 1.2 meters and a wave speed of 240 m/s. Calculate the frequency of the third harmonic.
💡 Hint: Use harmonic formulas for the wavelength and relate it to the speed for frequency.
Question 2
Describe how the energy of a standing wave changes when the harmonic number is increased and why.
💡 Hint: Think about how energy spreads along more vibrational points.
Challenge and get performance evaluation