PDF chapter test TRY NOW

1. Why does sound travel faster on a rainy day than on a dry day?
  
a. The speed of sound increases as .
  
b. During rainy season sound wave can travel . 
 
2. Why does an empty vessel produce more sound than a filled one?
  
a. Multiple sound reflections  take place in an empty vessel.
 
b.  makes much noise.
 
3. Air temperature in the Rajasthan desert can reach \(46°C\). What is the velocity of sound in air at that temperature?
 
a. The formula used in the above case is
 
 
b. The velocity of the sound is .