(i) Even if a loud explosion were to take place at any place on the moon, it would not be heard at a nearby point. Give reason.
(ii) Explain in brief the dependence of speed of sound on nature of material medium and temperature.
(iii) Identify the two factors on which the loudness of sound depends.
(i) Sound cannot travel through vacuum. Since Moon has no atmosphere. Hence, one can hardly hear the sound of loud explosion on the Moon.
(ii) For different media, the speed of sound is different. Speed of sound is maximum in solids and lowest in gases. Speed of sound increases with increase in temperature.
(iii) Loudness of sound depends upon amplitude nature of listener.