In the statement, tick 'T' against those which are true, and 'F' against those which are false.
For human ears, the audible range is 20 Hz to 20,000 Hz. (T/F)

In the statement, tick 'T' against those which are true, and 'F' against those which are false. Sound cannot travel in vacuum. (T/F)

In the statement, tick 'T' against those which are true, and 'F' against those which are false. If the amplitude of vibration is large, sound is feeble. (T/F)

In the statement, tick 'T' against those which are true, and 'F' against those which are false. The lower the frequency of vibration, the higher is the pitch. (T/F)

In the statement, tick 'T' against those which are true, and 'F' against those which are false. (T/F)Unwanted or unpleasant sound is termed as music. (T/F)

In the statement, tick 'T' against those which are true, and 'F' against those which are false. Noise pollution may cause partial hearing impairment. (T/F)

In the statement, tick 'T' against those which are true, and 'F' against those which are false. The number of oscillations per second of a vibrating object is called its time period. (T/F)

Write T against true and F against false in the statements. Like charges attract each other. (T/F)

Write T against true and F against false in the statements. Earthquakes can be predicted in advance. (T/F)

An open organ pipe has a length of 5 cm. (a) Find the fundamental frequency of vibration of this pipe. (b) What is the highest harmonic of such a tube that is in the audible range ? Speed of sound in air is 340 ms^-1 and the audible range is 20-20,000 Hz.