NCERT solution for class 8 // Science // chapter 13 - Sound
NCERT solution > Science > Class 8 NCERT solution for class 8 // Science // chapter 13 - Sound Chapter 13 - Sound Exercise Q1. Choose the correct answer 1. Sound can travel through a) gases only b ) Solid only c) liquid only d) solid liquid and gases 2. Voice of which of the following is likely to have minimum frequency. a) baby girl . b) baby boy c) a man d) a woman 3. In the following statement tick T against those which are true and F against those which are false . a) sound cannot travel in vacuum . b) The number of oscillation per second of A vibrating object is called its time period. c) If the amplitude of vibration is largest sound is feeble . d) For human ears the audible range is 20 Hz to 20000 Hz . e) The lower the frequency of vibration the higher is the pitch. f) Unwanted or unpl...