Question

c) T-2NE
18. What causes reverberation?
a) Interference
b) Diffraction
c) Refraction
d) Reflection
19. Both light and sound waves:
a) Can be diffracted
b) Can be polarized
c) Can travel in vacuum
d) Are electromagnetic waves​

Answer 1

Answer:

18:- Reflection.

19:- Can be diffracted..

Explanation:

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