Multiple choice

Arrange the water, metallic pipe and air according to their decreasing speed of sound.

  1. metallic pipe, air, water

  2. metallic pipe, water, air

  3. air, water, metallic pipe

  4. water, air, metallic pipe
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Speed of sound in normal air is 343 m/s. In water, the speed is 1433 m/s. Speed of sound in metals is even more; like in copper, it is 4600 m/s and in iron, it’s 5130 m/s.

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