Mechanical & Electromagnetic Waves

11. Which of the following waves do not require a medium to propagate?

a) Longitudinal waves

b) Transverse waves

c) Both longitudinal and transverse waves

d) None of the above

12. The speed of a wave is equal to the product of its wavelength and frequency. True or False?

13. The energy of a wave is directly proportional to its amplitude. True or False?

14. The process of a wave bouncing off a surface is called:

a) Reflection

b) Refraction

c) Diffraction

d) Interference

15. The bending of waves around obstacles or through openings is called:

a) Reflection

b) Refraction

c) Diffraction

d) Interference