Sound and light basics - Question Bank
1. Which color of light has the highest frequency?
2. The phenomenon of sound interference can lead to:
3. When light encounters an opaque object, it is:
4. What is the minimum audible sound intensity for a healthy human ear?
5. Which part of the visible spectrum has the longest wavelength?
6. Sound waves are mechanical waves, meaning they:
7. The phenomenon that allows us to hear sounds from around corners is:
8. What is the term for the point where parallel rays of light converge after reflection or refraction?
9. The inverse square law relates the intensity of light or sound to:
10. The phenomenon of light bending inside a medium due to variations in refractive index is called:
11. Which of the following is a characteristic of longitudinal waves?
12. The minimum distance required for an echo to be heard distinctly is approximately:
13. Which type of mirror always forms a virtual, erect, and diminished image?
14. The fundamental equation relating wave speed (v), frequency (f), and wavelength (λ) is:
15. Which phenomenon is responsible for the blue color of the sky?
16. The Doppler effect is the change in frequency of a wave in relation to an observer who is:
17. What is the term for the characteristic sound quality that distinguishes different voices or instruments?
18. The ability of light to pass through a medium is described by its:
19. Which optical instrument utilizes the principle of reflection of light?
20. A sound wave with a frequency above the human hearing range (20 kHz) is called:
21. What is the relationship between frequency (f) and period (T) of a wave?
22. The speed of sound is affected by:
23. Which part of the electromagnetic spectrum is responsible for tanning the skin?
24. The phenomenon of light traveling in straight lines is called:
25. When light passes through a small aperture and spreads out, it is called:
26. The intensity of sound is measured in units of:
27. Which of the following is a type of electromagnetic wave associated with heat radiation?
28. The splitting of white light into its constituent colors is called:
29. A sonar system uses which property of sound to detect underwater objects?
30. The time taken for one complete oscillation or cycle is called:
31. When two or more light waves combine, the phenomenon is called:
32. The pitch of a sound is determined by its:
33. What property of light allows us to see objects that do not emit light themselves?
34. The phenomenon where light bends around obstacles is called:
35. Sound waves cannot travel through:
36. Which of the following is an example of reflection of sound?
37. The distance between two consecutive crests or troughs of a wave is called:
38. What is the term for the number of complete vibrations or cycles per second?
39. The persistence of hearing, after the sound source has stopped, is typically around:
40. Which medium does sound travel fastest in?
41. The phenomenon of sound travelling through a medium is due to:
42. When light bounces off a surface, the phenomenon is known as:
43. The color of light is determined by its:
44. Which of the following terms describes the loudness of a sound?
45. What is the approximate speed of light in a vacuum?
46. The bending of light as it passes from one medium to another is called:
47. Which phenomenon explains why we see a rainbow after rain?
48. The speed of sound in air at room temperature is approximately:
49. What is the unit of frequency?
50. Which of the following is a characteristic of light waves?