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

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

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

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

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

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

Mark the following statements as true (T) or false . Uranus is the farthest planet in the solar system. ( )

Mark the following statements as true (T) or false . There are nine planets in the solar system. ( )