Problem

Solutions For Admission Assessment Exam Review Chapter H Problem 20PPT

Step-by-Step Solution

Solution 1

Wavelength, speed and frequency are the basic parameters that define a wave.

Standing waves are formed when two waves of same frequency interfere in opposite direction. The apparent change in frequency due to the relative motion of the source and observer is Doppler effect. Sound waves are mechanical waves and they do not travel in transverse nature in the air.

Hence, option (B), (C) and (D) are incorrect answers.

Step #3 of 3

The sound waves are longitudinal in nature when they travel in air. It has compressions and rarefactions.

Hence, option is the correct answer.