PU E 2026 Waves Free Quiz 2

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PU E 2026 Waves Free Quiz 2

PU E Quiz

10:00

Answered: 0 / 10

Remaining: 10

Navigator 10 Q

General

General 10 MCQs

11. How does temperature affect the speed of sound?

A. Decreases with temperature B. Is independent of temperature C. Increases with temperature D. Increases with temperature

12. What is the Doppler effect?

A. Change in frequency due to relative motion B. Change in wavelength due to relative motion C. Change in speed due to relative motion D. Change in amplitude due to relative motion

13. What is a practical application of the Doppler effect?

A. Sonar B. Navigation C. Radar and medical ultrasound D. Communication

14. How are standing waves formed?

A. Two waves traveling in opposite directions B. Two waves traveling in same direction C. A single wave reflecting D. Multiple waves of different frequencies

15. What is a node in a standing wave?

A. Point of maximum amplitude B. Point of zero displacement C. Point of maximum displacement D. Point of minimum displacement

16. What is an antinode in a standing wave?

A. Point of zero displacement B. Point of minimum displacement C. Point of maximum displacement D. Point of minimum amplitude

17. What is the distance between two consecutive nodes in a standing wave?

A. λ B. λ/4 C. 2λ D. λ/2

18. What is the frequency of the fundamental mode in a string fixed at both ends?

A. v/2L B. v/L C. 2v/L D. 3v/L

19. Why can resonance be dangerous?

A. Always beneficial B. Can be dangerous for structures C. Never occurs in nature D. Only occurs in sound

20. What is the condition for first resonance in a resonance tube?

A. L = λ/2 B. L = λ C. L = λ/4 D. L = 3λ/4

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