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

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

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 : More the amplitude of a vibration, less is its loudness.

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

Write true or false for the following statements: Heat energy required to melt 1 g of ice to 1 g of water at 0^(@)C is 2260 J_________

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 statements. The molecules of a gas contained in a closed vessel are stationary.

Write true or false for the following statements: A vapour is a gaseous state of a liquid below its boiling point.

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. We can easily make out the difference between the sound of a sitar and that of a violin.