Question

Men sound on the ground at a fixed distance from a siren which emits the sound of fixed amplitude. The man hears the sound to be louder in a clear night than on a clear day.

• A. True
• B. False

Answer 1

The correct option is B False

Usually, at the night, atmosphere is clean relative two days because of pollution other regular activities. When the fixed amplitude sound is produced with an instrument, the sound hear by the observer at a fixed distance will be different because pollution available in the atmosphere will absorb some of its energy.

But if the day is also clean as night then there will be no difference in the sound quality received by the observer. Hence given statement is false.