हवा के माध्यम से प्रसारित होने वाली अनुदैर्ध्य ध्वनि तरंगों (longitudinal sound waves) से निम्नलिखित में से कौन सी विशेषता संबद्ध नहीं है?

Which navigation and detection device on a ship utilizes the reflection of ultrasonic sound waves underwater to measure the depth of the seabed or identify submerged objects?

Study the given statements (P, Q) pertaining to the propagation of sound waves and select the correct option. P. Sound propagation from one point to another point is governed by Sabine's formula. Q. In air, sound propagates as longitudinal waves.