Question

4. Find the odd one out. Give a reason for your choice.
(a) Pitch, loudness, timbre, wavelength.
(b) Pitch, shrill, bass, loudness.
(c) Echo, reflection of sound, bats, parrots.
(d) Loudspeaker, music system, ear plugs, supersonic plane.​

Answer 1

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(b) Pitch, shrill, bass, loudness.

Answer 2

Answer:

a. wavelength

because it is not a type of sound whereas others are.

b. bass

because it is not a type of sound whereas others are.

c. parrots

because they neither produce echo nor reflection of sound.

d. earplugs

because it prevents sound pollution whereas others are the sources of sound pollution.

Explanation:

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