Waves, heat and light: heat, sound, light and related concepts - Question Bank
1. What is the term for the energy transferred from one body to another due to a temperature difference?
2. The phenomenon of mixing of two or more waves when they come together is called:
3. Which type of wave travels as compressions and rarefactions?
4. The SI unit of specific heat capacity is:
5. Which phenomenon causes the shimmering effect of objects seen over a hot surface?
6. What is the change of state from liquid to gas called?
7. The inverse of the period of a wave is its:
8. Which lens is used to correct hypermetropia (farsightedness)?
9. What is the process of a solid directly converting into a gas called?
10. The pitch of a sound is determined by its:
11. Which of the following is a form of electromagnetic radiation?
12. What is the SI unit of heat?
13. The phenomenon where light bends when passing through a small aperture is called:
14. Which type of mirror is used in headlights of cars to produce a parallel beam of light?
15. What is the unit of wavelength?
16. Which instrument is used to measure temperature?
17. The process by which heat is transferred through the vibration of particles in a solid is:
18. Which of the following is a source of heat energy?
19. What is the distance between two consecutive crests or troughs of a transverse wave called?
20. Which color of light has the shortest wavelength?
21. The heat absorbed or released during a change of state at constant temperature is called:
22. Which phenomenon explains why a swimming pool appears shallower than it actually is?
23. Which lens is used to correct myopia (nearsightedness)?
24. What is the ratio of the speed of a body to the speed of sound in the medium called?
25. Which type of waves can travel through vacuum?
26. What is the temperature at which a solid changes into a liquid called?
27. The time taken for one complete oscillation of a wave is called its:
28. Which of the following is an example of a longitudinal wave?
29. What is the phenomenon of splitting of white light into its constituent colors called?
30. The unit of power of a lens is:
31. Which type of heat transfer is dominant in liquids and gases?
32. What is the heat required to raise the temperature of 1 kg of a substance by 1°C called?
33. A concave lens is also known as a:
34. What is the unit of intensity of sound?
35. Which phenomenon is responsible for the blue color of the sky?
36. What is the term for the change in direction of light when it strikes a surface and bounces back?
37. Which part of the electromagnetic spectrum is responsible for heating effect of sun rays?
38. What is the boiling point of water at standard atmospheric pressure in Celsius?
39. Which property of light causes it to bend when it passes from one medium to another?
40. The loudness of a sound is determined by its:
41. What is the minimum number of plane mirrors required to form an image of oneself from all directions?
42. Which type of mirror always forms a virtual, erect, and diminished image?
43. What is the SI unit of heat energy?
44. What is the phenomenon responsible for the formation of rainbows?
45. Which of the following is NOT a primary color of light?
46. The transfer of heat through direct contact is called:
47. What is the speed of sound in dry air at 20°C?
48. Which color of light has the longest wavelength?
49. What is the term for the maximum displacement of a particle from its equilibrium position?
50. Which phenomenon explains why we can hear sounds around corners?