This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part Ii > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 26 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 26 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Waves that travel up and down A) Transverse. B) Compressional. C) Mechanical. D) Longitudinal. Show Answer Correct Answer: A) Transverse. 2. For waves moving at a constant speed, if wavelength is doubled, then frequency is A) Quadrupled. B) Doubled. C) Halved. D) Unchanged. Show Answer Correct Answer: C) Halved. 3. In a longitudinal wave, how do the particles of the medium move? A) In the same direction as the wave. B) Perpendicular to the wave direction. C) In a circular motion. D) They do not move. Show Answer Correct Answer: A) In the same direction as the wave. 4. What happens to the sound of a siren as it has passed you? A) Higher pitch. B) Lower pitch. C) Higher amplitude. D) Increase in volume. Show Answer Correct Answer: B) Lower pitch. 5. What type of wave is light considered? A) Progressive. B) Longitudinal. C) Transverse. D) Standing. Show Answer Correct Answer: C) Transverse. 6. Which type of wave requires a medium to propagate? A) Sound waves. B) Electromagnetic waves. C) Light waves. D) Radio waves. Show Answer Correct Answer: A) Sound waves. 7. Mac and Tosh are creating waves using a 3-inch zinc-coiled Slinky. If they double the frequency of the waves which they are creating (without any alteration in the medium), then one can be sure that ..... A) The speed will double. B) The wavelength will halve. C) The speed will halve. D) The wavelength will double. Show Answer Correct Answer: B) The wavelength will halve. 8. A mechanical wave cannot travel through ..... A) A vacuum(empty space). B) Water. C) Air. D) Glass. Show Answer Correct Answer: A) A vacuum(empty space). 9. What are the two fields that make up light? A) Gravity and magnetic. B) Electric and gravity. C) Magnetic and nuclear. D) Electric and magnetic. Show Answer Correct Answer: D) Electric and magnetic. 10. In a longitudinal wave in a coiled spring, a ..... is where the coils are spread out. A) Refraction. B) Compression. C) Rarefaction. D) Diffraction. Show Answer Correct Answer: C) Rarefaction. 11. What type of wave involves particle motion in the same direction as the wave propagation? A) Surface wave. B) Transverse wave. C) Torsional wave. D) Longitudinal wave. Show Answer Correct Answer: D) Longitudinal wave. 12. Which of the following will cause diffraction? A) A wave passes through a small opening. B) A wave hits a barrier. C) A wave changes speed. D) A person waves at you. Show Answer Correct Answer: A) A wave passes through a small opening. 13. The bending of light when it changes medium is: A) Refraction. B) Reflection. C) Opaque. D) Translucent. Show Answer Correct Answer: A) Refraction. 14. What is the wavelength of a wave? A) Distance between two consecutive points in a wave that are in phase with each other. B) The speed of the wave. C) The frequency of the wave. D) The height of the wave. Show Answer Correct Answer: A) Distance between two consecutive points in a wave that are in phase with each other. 15. What property of a wave is typically measured in Hertz (Hz)? A) Amplitude. B) Frequency. C) Speed. D) WavelengthTagsDOK Level 1:Recall. Show Answer Correct Answer: B) Frequency. 16. A cyclist rotates the pedals of his bike twice in 1 second. What is the frequency at which he is turning? A) 1 Hz. B) 20 Hz. C) 2 Hz. D) 0.5 Hz. Show Answer Correct Answer: C) 2 Hz. 17. The distance from a crest to the next one. A) Wavelength $\left(\lambda\right)$. B) Crest of the wave. C) Period $\left(T\right)$. D) Amplitude $\left(A\right)$. Show Answer Correct Answer: A) Wavelength $\left(\lambda\right)$. 18. Define the term 'amplitude' of a wave. A) The speed of the wave. B) Maximum displacement or distance moved by a point on a vibrating body or wave from its central position. C) The frequency of the wave. D) The wavelength of the wave. Show Answer Correct Answer: B) Maximum displacement or distance moved by a point on a vibrating body or wave from its central position. 19. Total internal reflection is only possible when the wave is ..... A) Trying to get from a less optically dense medium to a more optically dense one. B) Trying to get from a more optically dense medium to a less optically dense one. C) All the above. D) None of the above. Show Answer Correct Answer: A) Trying to get from a less optically dense medium to a more optically dense one. 20. Which wave type ALWAYS needs a medium? A) Mechanical wave. B) Electromagnetic wave. C) Neither wave type needs a medium. D) None of the above. Show Answer Correct Answer: A) Mechanical wave. 21. Which of the following statements best describes a transverse wave? A) A wave that vibrates at right angles to the direction of energy transfer. B) A wave that vibrates parallel to the direction of energy transfer. C) A sound wave. D) A wave that crosses other wavefronts. Show Answer Correct Answer: A) A wave that vibrates at right angles to the direction of energy transfer. 22. What is the frequency of the photons emitted when an electron falls to the ground state (-10.4eV) from the-5.4eV excited state? A) 3.8 x 10$^{15}$Hz. B) 7.55 x 10$^{33}$Hz. C) 8.2 x 10$^{14}$ Hz. D) 1.21 x 10$^{15}$Hz. Show Answer Correct Answer: D) 1.21 x 10$^{15}$Hz. 23. Red light has a wavelength of 675 nm. What is its frequency? A) 4.44x1014 Hz. B) 2.03x1011 Hz. C) 2.03x1011 m. D) 4.44x1014 nm. Show Answer Correct Answer: A) 4.44x1014 Hz. 24. You place a ping pong ball in a wave machine that is producing transverse waves. Which of these statements is true about the ball? A) The ball will travel in the direction of the wave. B) The ball will travel against the direction of the wave. C) The ball will bob up and down and remain in the same position. D) The ball will sink below the surface of the water. Show Answer Correct Answer: C) The ball will bob up and down and remain in the same position. 25. An ambulance siren sounds higher in pitch when: A) Moving towards listener. B) Stationary. C) Moving away from listener. D) At constant velocity. Show Answer Correct Answer: A) Moving towards listener. 26. The distance between two successive crests or two successive troughs (or compressions or rarefactions) A) Wave Energy. B) Wave Distance. C) Wavelength. D) Wave Speed. Show Answer Correct Answer: C) Wavelength. 27. The speed of propagation of a transverse wave on a 2.0-m long string fixed at both ends is 200 m/s. Which one of the following is the frequency of this string? A) 200 Hz. B) 25 Hz. C) 50 Hz. D) 100 Hz. Show Answer Correct Answer: D) 100 Hz. 28. What is the relationship between the frequency of a standing wave and its harmonics? A) Frequency of a standing wave and its harmonics are unrelated. B) Frequency of a standing wave and its harmonics are inversely related. C) Frequency of a standing wave and its harmonics are related by whole number multiples. D) Frequency of a standing wave and its harmonics are related by prime number multiples. Show Answer Correct Answer: C) Frequency of a standing wave and its harmonics are related by whole number multiples. 29. Boomwhackers are fun children's toys that come in a variety of different types. They all do have the same diameter of about 4 cm, but which should have the highest pitch? A) The Boomwhacker that is 32 cm long. B) The Boomwhacker that is 49 cm long. C) Both are the same because the diameters are the same. D) More information is needed. Show Answer Correct Answer: A) The Boomwhacker that is 32 cm long. 30. Two boats are anchored 7.0 meters apart. They bob up and down, returning to the same up position every 10.0 seconds. The boats rise a vertical distance of 7.0 meters between their lowest and their highest point. When one is up the other is down. There are never any wave crests between the boats. Determine the period, frequency, wavelength, amplitude and speed of the waves. A) 1.35 m/s. B) 3.4 m/s. C) 2.67 m/s. D) 0.09 m/s. Show Answer Correct Answer: C) 2.67 m/s. 31. La longitud de onda se puede medir correctamente como ..... A) La distancia vertical desde el crest hasta el fondo. B) La distancia desde el crest a crest consecutivo. C) La distancia horizontal desde el crest hasta el fondo. D) La distancia entre dos puntos de equilibrio consecutivos. Show Answer Correct Answer: B) La distancia desde el crest a crest consecutivo. 32. Enjoy your summer! A) Thanks. B) Thanks. C) Thanks. D) Thanks. Show Answer Correct Answer: A) Thanks. 33. When two waves with equal amplitudes and frequencies meet in phase, what is the result? A) Increased frequency. B) Destructive interference. C) Amplification of the waves. D) Constructive interference. Show Answer Correct Answer: D) Constructive interference. 34. Which letter represents the amplitude of a wave? A) A. B) B. C) C. D) D. Show Answer Correct Answer: B) B. 35. The electromagnetic waves with the highest energy have: A) The largest amplitude. B) The longest wavelength. C) The slowest speed. D) The highest frequency. Show Answer Correct Answer: D) The highest frequency. 36. What object would absorb the most radiation? A) A red apple. B) A black T-shirt. C) A white skateboard. D) A mirror. Show Answer Correct Answer: B) A black T-shirt. 37. Simple harmonic motion does not require A) A restoring force. B) A maximum displacement. C) Periodic motion. D) Damping. Show Answer Correct Answer: D) Damping. 38. The unit for wavelength? A) Metre. B) Mm. C) Joules. D) Hertz. Show Answer Correct Answer: A) Metre. 39. What is the period of a wave with frequency 0.2? A) 20 seconds. B) 0.5 seconds. C) 0.2 seconds. D) 5 seconds. Show Answer Correct Answer: D) 5 seconds. 40. How does pitch of a sound relate to the frequency of a sound wave? A) Pitch depends on the amplitude. B) Pitch depends on the frequency. C) Pitch depends on the speed. D) Pitch depends on the wavelength. Show Answer Correct Answer: C) Pitch depends on the speed. 41. Which of the following statements about waves is correct? A) Waves can be produced on ropes. B) Waves are a way of transferring energy from place to place. C) There are two types of wave:longitudinal and transverse. D) All of the above. Show Answer Correct Answer: D) All of the above. 42. Explain the law of reflection with an example. A) The law of reflection only applies to sound waves, not light waves. B) The law of reflection states that light rays pass through the surface instead of reflecting. C) When a light ray strikes a smooth surface, it reflects at the same angle it hit the surface. D) When a light ray strikes a rough surface, it reflects at a different angle. Show Answer Correct Answer: C) When a light ray strikes a smooth surface, it reflects at the same angle it hit the surface. 43. What is interference in wave behavior? A) Interference is the process of waves reflecting off surfaces. B) Interference is the phenomenon where two or more waves superpose to form a resultant wave. C) Interference is the absorption of waves by a medium. D) Interference occurs when waves travel in opposite directions. Show Answer Correct Answer: B) Interference is the phenomenon where two or more waves superpose to form a resultant wave. 44. Any motion that repeats in a regular cycle is called ..... A) Transverse motion. B) Surface motion. C) Periodic motion. D) Interference. Show Answer Correct Answer: C) Periodic motion. 45. A radio station sends out a signal of $105.3MHz$ A) $2.849m$. B) $1.053\times10^8m$. C) $3.257\times10^{-6}m$. D) $2848\times10^6m$. Show Answer Correct Answer: A) $2.849m$. 46. Constructive interference occurs when waves meet A) At right angles. B) In phase. C) Out of phase. D) With different frequencies. Show Answer Correct Answer: B) In phase. 47. Through what matter does sound travel fastest in? A) Liquids. B) Solids. C) Vacuum. D) Gases. Show Answer Correct Answer: B) Solids. 48. Compared to the speed of a sound wave in air, the speed of a radio wave in air is A) Less. B) Greater. C) The same. D) None of the above. Show Answer Correct Answer: B) Greater. 49. Which best describes what occurs when an object takes in a wave as the wave hits it? A) Transmission. B) Absorption. C) Reflection. D) Refraction. Show Answer Correct Answer: B) Absorption. 50. Which type of wave is the slowest? A) Light. B) Fire. C) Water. D) Sound. Show Answer Correct Answer: C) Water. 51. When an object or wave hits a surface through which it cannot pass, it bounces back. What is this called? A) Reflection. B) Refraction. C) Resonance. D) Diffraction. Show Answer Correct Answer: A) Reflection. 52. When two waves experience constructive interference, the result is ..... A) A bigger wave. B) A smaller wave. C) A wave that is completely destroyed. D) They simply pass through each other. Show Answer Correct Answer: A) A bigger wave. 53. The speed of propagation of a transverse wave on a 2.0-m long string fixed at both ends is 200 m/s. Which one of the following is not a resonant frequency of this string? A) 50 Hz. B) 25 Hz. C) 200 Hz. D) 100 Hz. Show Answer Correct Answer: B) 25 Hz. 54. Wave amplitude directly relates to: A) Wave frequency. B) Wave energy. C) Wave phase. D) Wave speed. Show Answer Correct Answer: B) Wave energy. 55. Name one type of electromagnetic wave. A) Infrared waves. B) Microwaves. C) Radio waves. D) Ultraviolet rays. Show Answer Correct Answer: C) Radio waves. 56. Transverse waves are waves that travel ..... to the direction of the medium's particle vibration. A) Perpendicular. B) Parallel. C) Diagonal. D) Opposite. Show Answer Correct Answer: A) Perpendicular. 57. Atomic bombs send out a shock wave when they are detonated. This occurs because the bomb's detonation superheats the air particles nearby, which cause them to bump into other air particles that further the wave.Which statement can most likely be made about the shock waves of atomic bombs? A) They are a mechanical waves. B) They will act like x-rays. C) They will act like light rays. D) They are an electromagnetic waves. Show Answer Correct Answer: A) They are a mechanical waves. 58. What is the relationship between wave frequency and wavelength? A) Inversely proportional. B) Directly proportional. C) Unrelated. D) Equal. Show Answer Correct Answer: A) Inversely proportional. 59. Which color of visible light has the shortest wavelength? A) Violet. B) Yellow. C) Red. D) Green. Show Answer Correct Answer: A) Violet. 60. Sound waves can be modeled as A) Longitudinal waves. B) Transverse waves. C) Electromagnetic waves. D) Standing waves. Show Answer Correct Answer: A) Longitudinal waves. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Physics (Part Ii) Chapter 17 Waves Quiz 1Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 2Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 3Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 4Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 5Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 6Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 7Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books