If air in the room is warmed up, the speed of sound in it(1) increases(2) decreases(3) remains the same(4) fluctuates

With the rise of temperature, the velocity of sound:A. DecreaseB. IncreaseC. Remains the sameD. Is independent of temperatureE. None of these

Q1.With the increase in temperature, the frequency of the sound from an organ pipe*1 point(a) Decreases(b) Increases(c) Remain unchanged(d) Changes erratically

原文：声速随温度的升降会有轻微的增减，但不受气压的影响。译文：The speed of sound increase slightly with a rise in temperature and falls with decrease in temperature. It is not affected by the pressure of the air.上面的翻译实例使用了断句译法。Group of answer choicesTrueFalse

Why does sound travel slower in colder temperatures?Question 15AnswerA.Cold air can increase the elasticity of the mediumB.Cold air absorbs sound energy that is warmC.Cold air is denserD.Cold air has scattered molecules

Assertion : On a rainy day sound travel slower than on a dry day.Reason : When moisture is present in air the density of air increases.*