Write 'true' or 'false' for the following statement :
The range of sonic vibrations is between 20 Hz and 20,000 Hz.

Write 'true' or 'false' for the following statement : More the amplitude of a vibration, less is its loudness.

Write 'true' or 'false' for the following statement : Subsonic waves are used in dish washing machines.

Write 'true' or 'false' for the following statement : Sound energy is reflected by soft and loose surfaces.

Write true or false for the following statements. The force of attraction between molecules is called intermolecular force of attraction.

Write true or false for the following statement. Loudness does not depend on the area of vibrating body.

Write 'true' or 'false' for the following statement : With the increase in the frequency of a body, the sound becomes shrill.

Write true or false for the following statement. With the decrease in amplitude of a vibrating particle its pitch becomes bass.

Write true or false for the following statement. We can easily make out the difference between the sound of a sitar and that of a violin.

Write True or False for the following statement: Solids get heated by conduction only.___________

Write true or false for the following statements. The molecules of a gas contained in a closed vessel are stationary.