This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part Ii > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Visible light is transported by ..... waves. A) Electromagnetic. B) Mechanical. C) Longitudinal. D) Compressional. Show Answer Correct Answer: A) Electromagnetic. 2. A sound wave travels through concrete. The frequency of the wave is 1.25 kHz and its wavelength is 4 m. Calculate the speed of sound through concrete. A) 312.5 m/s. B) 5 m/s. C) ~ 0.3 m/s. D) 5, 000 m/s. Show Answer Correct Answer: D) 5, 000 m/s. 3. What principle is responsible for alternating light and dark bands when light passes through two or more narrow slits? A) Interference. B) Polarization. C) Diffraction. D) Refraction. Show Answer Correct Answer: A) Interference. 4. Which electromagnetic wave can you see? A) X-ray. B) Visible light. C) Gamma ray. D) Microwave ray. Show Answer Correct Answer: B) Visible light. 5. What is the relationship between intensity and distance from the source of a wave? A) Intensity remains constant regardless of distance. B) Intensity increases with distance. C) Intensity decreases with distance. D) Intensity is not related to distance. Show Answer Correct Answer: C) Intensity decreases with distance. 6. The equation f1 = v/4L applies to A) One end open one closed. B) Closed pipes. C) Strings. D) Open pipes. Show Answer Correct Answer: A) One end open one closed. 7. Interference of light is evidence that: A) Light is a transverse wave. B) The speed of light is very large. C) Light is a wave phenomenon. D) Light is electromagnetic in character. Show Answer Correct Answer: C) Light is a wave phenomenon. 8. What is the unit for wavelengths? A) Hertz. B) Meters per second sqaured. C) Meters. D) Meters per second. Show Answer Correct Answer: C) Meters. 9. What is the direction of disturbance in a transverse wave relative to the wave's movement? A) Parallel. B) Perpendicular. C) Random. D) Opposite. Show Answer Correct Answer: B) Perpendicular. 10. A mechanical wave transmits- A) Energy but not matter. B) Matter but not energy. C) Both matter and energy. D) Neither energy nor matter. Show Answer Correct Answer: A) Energy but not matter. 11. A reflected sound wave A) Rarefaction. B) Pitch. C) Echo. D) Frequency. Show Answer Correct Answer: C) Echo. 12. Which of the following waves cannot be polarized? A) Radio waves. B) Visible light. C) Ultrasonic. D) Gamma. Show Answer Correct Answer: C) Ultrasonic. 13. A spring is stretched 0.4 meters with 2.4 Newtons of force. What is the spring constant? A) 6 N/m. B) 0.17 Nm. C) 0.96 m/N. D) 2.8 N/m. Show Answer Correct Answer: A) 6 N/m. 14. What is the relationship between frequency ( $f$ $T$ A) $f = T$. B) $f = \frac{1}{T}$. C) $f = T^2$. D) $f = T + 1$. Show Answer Correct Answer: B) $f = \frac{1}{T}$. 15. What is the formula to calculate the speed of a wave? A) Speed = Frequency x Wavelength. B) Speed = Amplitude x Wavelength. C) Speed = Frequency + Wavelength. D) Speed = Frequency / Wavelength. Show Answer Correct Answer: A) Speed = Frequency x Wavelength. 16. What is electromagnetic wave? A) Electromagnetic waves are waves of electric and magnetic fields that travel through space. B) Electromagnetic waves are vibrations in solid materials that produce heat. C) Electromagnetic waves are particles that move in a straight line. D) Electromagnetic waves are sound waves that travel through air. Show Answer Correct Answer: A) Electromagnetic waves are waves of electric and magnetic fields that travel through space. 17. A sound wave is produced when an object ..... A) Slows down. B) Produces light. C) Goes faster. D) Vibrates. Show Answer Correct Answer: D) Vibrates. 18. Do waves carry energy or matter? A) Energy. B) Matter. C) I'm not sure. D) None of the above. Show Answer Correct Answer: A) Energy. 19. What is the frequency of a wave that takes 10 seconds to pass a point? (a) A) 10 Hz. B) Don't know/Can't remember. C) A. 0.1Hz. D) 0.01 Hz. E) 1 Hz. Show Answer Correct Answer: C) A. 0.1Hz. 20. Given a graph showing a direct relationship between frequency and speed in a specific medium, if the frequency is doubled, what is the likely effect on the speed of the waves? A) It remains constant. B) It halves. C) It doubles. D) It quadruples. Show Answer Correct Answer: A) It remains constant. 21. What type of lens causes parallel waves to converge at the principal focus? A) Cylindrical lens. B) Convex lens. C) Concave lens. D) Bifocal lens. Show Answer Correct Answer: B) Convex lens. 22. What does pitch depend on? A) Intensity. B) Volume of sound. C) Frequency. D) Amplitude. Show Answer Correct Answer: C) Frequency. 23. The time for one cycle is the ..... A) Period. B) Amplitude. C) Frequency. D) Wave speed. E) Wavelength. Show Answer Correct Answer: A) Period. 24. Amplitude reflects the amount of ..... in a wave. A) Energy. B) Speed. C) Compression. D) Rarefaction. Show Answer Correct Answer: A) Energy. 25. What is the frequency of a wave if it takes 1.5 seconds to complete 2 wavelengths? A) 1.5 Hz. B) 1.33 Hz. C) 2.02 Hz. D) 0.667 Hz. Show Answer Correct Answer: B) 1.33 Hz. 26. ..... is the distance between a point on one wave and the identical point of the next wave. A) Amplitude. B) Frequency. C) Crest. D) Wavelength. Show Answer Correct Answer: D) Wavelength. 27. Which one of the following is longitudinal wave A) Electro magnetic wave. B) Lite wave. C) Sound wave. D) Matter wave. Show Answer Correct Answer: C) Sound wave. 28. Which of the following is an example of a longitudinal wave? A) Sound. B) EM. C) Light. D) Radio. Show Answer Correct Answer: A) Sound. 29. The type of wave in which the medium moves perpendicular to the wave motion is A) Diffraction. B) Longitudinal (or compression). C) Transverse. D) Refraction. Show Answer Correct Answer: C) Transverse. 30. If the refractive index of diamond is 1.41 then the greatest incidentangle that lets the light ray to emerge to air is ..... A) 30. B) 45. C) 60. D) None of the above. Show Answer Correct Answer: B) 45. 31. What type of EM radiation is used in military night vision goggles? A) Radio wave. B) Light. C) Infrared. D) Microwave. Show Answer Correct Answer: C) Infrared. 32. When the sound source moves, the frequency changesex. police car siren sounding lower pitch after the car passes A) Pitch. B) Frequency. C) Medium. D) Doppler Effect. Show Answer Correct Answer: D) Doppler Effect. 33. Put the visible light colors in order from longest wavelength to shortest wavelength A) Violet, Indigo, Blue, Green, Orange, Yellow, Red. B) Red, Orange, Yellow, Green, Blue, Indigo, Violet. C) Red, Yellow, Green, Orange, Violet, Blue, Indi. D) None of the above. Show Answer Correct Answer: B) Red, Orange, Yellow, Green, Blue, Indigo, Violet. 34. What happens to the amplitude of a standing wave at a node? A) The amplitude of a standing wave at a node oscillates. B) The amplitude of a standing wave at a node doubles. C) The amplitude of a standing wave at a node is zero. D) The amplitude of a standing wave at a node becomes negative. Show Answer Correct Answer: C) The amplitude of a standing wave at a node is zero. 35. Gamma rays are used for? A) Sterilising food and medical equipment. B) Communications. C) Heaters. D) Cooking. Show Answer Correct Answer: A) Sterilising food and medical equipment. 36. The bigger the amplitude the higher the tone in a sound A) False. B) Truth. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 37. What is transferred from place to place by waves? A) Energy. B) Matter. C) Volume. D) Mass. Show Answer Correct Answer: A) Energy. 38. If a person yells (as opposed to whispering), then it will cause A) Air molecules to vibrate more frequently. B) The sound wave to travel faster. C) Air molecules to vibrate with greater amplitude. D) None of the above. Show Answer Correct Answer: C) Air molecules to vibrate with greater amplitude. 39. What determines the energy of light? A) Its amplitude. B) Its speed. C) Its wavelength. D) Its intensity. Show Answer Correct Answer: C) Its wavelength. 40. The waves are bending as it passes from one medium to another. A) Refraction. B) Transmission. C) Diffraction. D) Reflection. Show Answer Correct Answer: A) Refraction. 41. In a longitudinal wave, the particles A) Remain stationary. B) Move forward with the speed of the wave. C) Move backwards and forwards parallel to the direction of travel of the wave. D) Move from side to side, perpendicular to the direction of travel of the wave. Show Answer Correct Answer: C) Move backwards and forwards parallel to the direction of travel of the wave. 42. Describe the characteristics of a stationary wave. A) The wave travels in one direction. B) Energy transfer occurs continuously. C) Only one node is present. D) Characteristics of a stationary wave include nodes and antinodes, no energy transfer, and a fixed pattern of oscillation. Show Answer Correct Answer: D) Characteristics of a stationary wave include nodes and antinodes, no energy transfer, and a fixed pattern of oscillation. 43. What happens when two identical pulses overlap on a rope? A) They cancel each other out. B) They create a trough. C) They create destructive interference. D) They create a crest with higher amplitude. Show Answer Correct Answer: D) They create a crest with higher amplitude. 44. The amplitude of sound is directly related to its ..... A) Wavelength. B) Frequency. C) Pitch. D) Loudness. Show Answer Correct Answer: D) Loudness. 45. In a sound wave, ..... is the pitch and ..... is the loudness A) Frequency is pitch, Amplitude is loudness. B) Amplitude is pitch, Period is loudness. C) Amplitude is pitch, Wavelength is loudness. D) Crest is the pitch, Trough is the loudness. Show Answer Correct Answer: A) Frequency is pitch, Amplitude is loudness. 46. Electromagnetic energy travels in waves. These waves can vary in their frequencies and wavelengths. Electromagnetic energy is classified by the length and frequency of its wave. Of the four wave types below, which has the highest frequency? A) Infrared waves. B) Gamma rays. C) Microwaves. D) Radio waves. Show Answer Correct Answer: B) Gamma rays. 47. Which wave type involves oscillations perpendicular to the direction of wave travel? A) Continuous wave. B) Pulse wave. C) Transverse wave. D) Longitudinal wave. Show Answer Correct Answer: C) Transverse wave. 48. The highest point on a wave is called the ..... A) Wavelength. B) Equilibrium. C) Trough. D) Crest. E) Amplitude. Show Answer Correct Answer: D) Crest. 49. How loud or soft a sound is, is related to the ..... of the wave A) Frequency. B) Amplitude. C) Wave length. D) Rest position. Show Answer Correct Answer: B) Amplitude. 50. If E and P are the energy and the momentum ofa photon respectively then on reducing thewavelength of photon- A) P and E both will decrease. B) P and E both will increase. C) P will increase and E will decrease. D) P will decrease and E will increase. Show Answer Correct Answer: B) P and E both will increase. 51. What is the pitch of a sound wave? A) How loud or soft sound is. B) How high or low sound is. C) A material that sound travels through. D) Back and forth movement of the air particles. Show Answer Correct Answer: B) How high or low sound is. 52. A sound wave bends around a door and you can hear it in the hallway. Which phenomenon is happening? A) Reflection. B) Refraction. C) Diffraction. D) Constructive interference. Show Answer Correct Answer: C) Diffraction. 53. 1) A ray of light hits a surface and it 67.5$^\circ$ to the normal. At what angle does it reflect off of the surface? A) 67.5$^\circ$. B) 112.5$^\circ$. C) -0.850$^\circ$. D) None of the above. Show Answer Correct Answer: A) 67.5$^\circ$. 54. In Young's Double slit experiment, two adjacent bright fringes are 0.5 cm apart. The distance between two dark fringes ..... A) Is greater than 0.5 cm. B) Is exactly 0.5 cm. C) Is less than 0.5 cm. D) Is dependent on which order is observed. Show Answer Correct Answer: B) Is exactly 0.5 cm. 55. When waves overlap causing a quiet zone A) Resonance. B) Constructive interference. C) Destructive interference. D) Diffraction. Show Answer Correct Answer: C) Destructive interference. 56. What happens to the sound of a siren as it approaches you? A) Pitch is higher. B) Volume decreases. C) Intensity decreases. D) Pitch is lower. Show Answer Correct Answer: A) Pitch is higher. 57. When a wave bends while moving from one medium to another A) Rarefaction. B) Refraction. C) Reflection. D) Resonance. Show Answer Correct Answer: B) Refraction. 58. What is the Doppler Effect? A) A change in frequency due to the relative motion of a wave source and an observer. B) When a wave overlaps with another wave. C) When a wave bounces off of another object. D) When a wave bends due to traveling through a different medium. Show Answer Correct Answer: A) A change in frequency due to the relative motion of a wave source and an observer. 59. In an open-open tube displaying resonance, the displacement anti-nodes are located at the ends of the tube. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 60. Which of the following best describes wave transmission? A) The passing of waves through a medium or across a boundary without being reflected or absorbed. B) The bouncing back of waves when they encounter a boundary. C) The redirection of waves due to obstacles in their path. D) The bending of waves as they pass from one medium to another. Show Answer Correct Answer: A) The passing of waves through a medium or across a boundary without being reflected or absorbed. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Physics (Part Ii) Chapter 17 Waves Quiz 1Class 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 8Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books