Read the given statements and select the correct option.

Statement 1: Echo is produced when sound is incident on hard and polished surface.
Statement 2: Sound energy can be totally reflected by objects with soft and loose texture.

Match the column I with column II and mark the correct option from the codes given below.

A sound wave travelling in a medium is represented as shown n figure.

If vibrating source of sound makes $360$ oscillations in $2$ minutes, then the amplitude, wavelength and frequency of the sound wave respectively are (Take velocity of sound as $342 {\mathrm{ms}}^{-1}$)

The diagram represents two different sound waves.