Question 1 :
Time taken by an object to complete one oscillation is called __________.

Question 2 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d0abf59b460d7261f333.jpeg' /> In the above figure an alarm bell is kept inside a vessel. A person standing close to it can distinctly hear the sound of alarm. Now if the air inside the vessel is removed completely how will the loudness of alarm get affected for the same person?

Question 8 :
Suppose a stick is struck against a frying pan in vacuum. Will the frying pan vibrate?

Question 9 :
Unwanted or unpleasant sound is termed as music. True or False ?

Question 10 :
Which of the following voices is likely to have minimum frequency?