Match the following characteristics of sound and wave motion with their descriptions: Column I: a) Compression b) Rarefaction c) Longitudinal wave d) Speed of sound Column II: 1) Particles of the medium vibrate parallel to the direction of wave propagation 2) Region of high pressure and high density 3) Distance travelled by a wave per unit time 4) Region of low pressure and low density

What is the minimum distance a person must stand at from a reflecting surface to hear a distinct echo (assuming speed of sound in air is approximately 344 m/s)?

Sound in the human audible frequency range is commonly referred to as:

Assertion (A): Sound produced from a larger tabla is louder than sound produced from a smaller tabla when struck with equal force. Reason 1 (R1): Loudness increases with an increase in the surface area of the vibrating body. Reason 2 (R2): A larger tabla produces sound of a higher pitch.